diff --git a/Mine/src/components/settings/ProfileSettings.tsx b/Mine/src/components/settings/ProfileSettings.tsx
index d9b7a34..b2b2291 100644
--- a/Mine/src/components/settings/ProfileSettings.tsx
+++ b/Mine/src/components/settings/ProfileSettings.tsx
@@ -99,7 +99,7 @@ export default function ProfileSettings({ editMode, onCancelEdit, onSave, refCan
                                 autoFocus
                                 onChange={(e) => setDraft({ ...draft, nickname: e.target.value })}
                                 onBlur={() => setEditingField(null)}
-                                className="border-b border- outlgray-100ine-none font-medium16 pb-1 bg-transparent text-gray-100"
+                                className="border-b border-gray-100 outline-none font-medium16 pb-1 bg-transparent text-gray-100"
                             />
                         ) : (
                             <span
diff --git a/Mine/src/hooks/usePostMagazine.ts b/Mine/src/hooks/usePostMagazine.ts
index 9b31ddc..8b0b610 100644
--- a/Mine/src/hooks/usePostMagazine.ts
+++ b/Mine/src/hooks/usePostMagazine.ts
@@ -8,19 +8,16 @@ export default function usePostMagazine() {
     const { setToast } = useToastStore()
 
     return useMutation({
-        mutationFn: async ({ topic, user_mood }: PostMagazineDto) => {
+        mutationFn: ({ topic, user_mood }: PostMagazineDto) => postMagazine({ topic, user_mood }),
+        onMutate: () => {
             setToast('magazine', 'loading')
-            try {
-                const data = await postMagazine({ topic, user_mood })
-                setToast('magazine', 'success')
-                return data
-            } catch (error) {
-                setToast('magazine', 'error')
-                throw error
-            }
         },
         onSuccess: () => {
+            setToast('magazine', 'success')
             queryClient.invalidateQueries({ queryKey: ['mymagazines'] })
         },
+        onError: () => {
+            setToast('magazine', 'error')
+        },
     })
-}
\ No newline at end of file
+}
diff --git a/Mine/src/pages/main/MainPage.tsx b/Mine/src/pages/main/MainPage.tsx
index 0ecaae4..a403893 100644
--- a/Mine/src/pages/main/MainPage.tsx
+++ b/Mine/src/pages/main/MainPage.tsx
@@ -1,11 +1,10 @@
-import { useState, useEffect } from 'react'
+import { useEffect, useRef, useState } from 'react'
 import { useNavigate } from 'react-router-dom'
 import usePostMagazine from '../../hooks/usePostMagazine'
 import landingBg from '../../assets/bg1.png'
 import NewMagazineInput from '../../components/NewMagazineInput'
 import MakingLoadingPage from './MakingLoadingPage'
 import { useAuthStore } from '../../stores/auth'
-import { useToastStore } from '../../stores/toastStore'
 import LandingPage from '../landing/LandingPage'
 import { hasBlockedWord } from '../../utils/blockedWords'
 import HarmfulKeywordModal from '../../components/common/HarmfulKeywordModal'
@@ -17,45 +16,41 @@ export default function MainPage() {
     const [userMood, setUserMood] = useState('')
     const [isModalOpen, setIsModalOpen] = useState(false)
     const { isLoggedIn } = useAuthStore()
-    const { setToast } = useToastStore()
     const navigate = useNavigate()
 
+    const timerRef = useRef<ReturnType<typeof setTimeout> | null>(null)
+
+    useEffect(() => {
+        return () => {
+            if (timerRef.current) {
+                clearTimeout(timerRef.current) // 화면이 닫히면 타이머 폭파!
+            }
+        }
+    }, [])
+
     const handleSend = () => {
-        const currentText = topic.trim()
-        if (!currentText) return
-        if (hasBlockedWord(currentText)) {
+        const trimmedTopic = topic.trim()
+        if (!trimmedTopic) return
+        if (hasBlockedWord(trimmedTopic)) {
             setIsModalOpen(true)
             return // 여기서 함수를 끝내버려서 백엔드로 넘어가지 않게 막습니다!
         }
         if (isPending) return
-        postMagazineMutation.mutate({ topic: currentText, user_mood: userMood })
-    }
 
-    useEffect(() => {
-        if (postMagazineMutation.isPending) {
-            setToast('magazine', 'loading')
-        } else if (postMagazineMutation.isSuccess) {
-            setToast('magazine', 'success')
-
-            // 성공 토스트를 1.5초간 보여준 후 매거진 상세 페이지로 부드럽게 이동
-            setTimeout(() => {
-                // 백엔드 응답(data) 자체가 ID이거나 객체 내부에 있는 경우 모두 대응
-                const responseData = postMagazineMutation.data
-                const newMagazineId = responseData?.magazineId || responseData
-                if (newMagazineId) navigate(`/${newMagazineId}`)
-                else navigate('/explore')
-            }, 1500)
-        } else if (postMagazineMutation.isError) {
-            setToast('magazine', 'error')
-        }
-    }, [
-        postMagazineMutation.isPending,
-        postMagazineMutation.isSuccess,
-        postMagazineMutation.isError,
-        postMagazineMutation.data,
-        navigate,
-        setToast,
-    ])
+        // 💡 핵심 수정: mutate 함수 두 번째 인자로 옵션 객체를 넘깁니다!
+        postMagazineMutation.mutate(
+            { topic: trimmedTopic, user_mood: userMood },
+            {
+                // API 통신이 "딱 한 번" 성공했을 때만 이 코드가 실행됩니다. (useEffect 버그 해결!)
+                onSuccess: (data) => {
+                    timerRef.current = setTimeout(() => {
+                        const newMagazineId = data?.magazineId || data
+                        if (newMagazineId) navigate(`/${newMagazineId}`)
+                    }, 1500)
+                },
+            }
+        )
+    }
 
     if (!isLoggedIn) return <LandingPage />
 
diff --git a/Mine/src/types/magazine.ts b/Mine/src/types/magazine.ts
index d6c19e4..83e4caf 100644
--- a/Mine/src/types/magazine.ts
+++ b/Mine/src/types/magazine.ts
@@ -70,7 +70,7 @@ type Section = {
     heading: string
     thumbnailUrl: string
     paragraphs: Paragraph[]
-    displayOrder: 0
+    displayOrder: number
     sourceUrl: string
     sectionId: number
 }