diff --git a/bot.sh b/bot.sh
index f71fe0d..e17430d 100755
--- a/bot.sh
+++ b/bot.sh
@@ -5,47 +5,45 @@ user=$2
 
 # 傳送訊息
 function sendMessage {
-	curl "https://api.telegram.org/bot$token/sendMessage?chat_id=$user&text=$1$2"
+    curl "https://api.telegram.org/bot$token/sendMessage?chat_id=$user&text=$1$2"
 }
 
 # 傳送照片
 function sendPhoto {
-	curl "https://api.telegram.org/bot$token/sendPhoto" \
-	--header 'content-type: application/json' \
-	--data '{"chat_id": "'"$user"'", "photo": "'"$1"'", "caption": "'"$2"'"'"$3"'}'
+    curl "https://api.telegram.org/bot$token/sendPhoto" \
+        --header 'content-type: application/json' \
+        --data '{"chat_id": "'"$user"'", "photo": "'"$1"'", "caption": "'"$2"'"'"$3"'}'
 }
 
 # 傳送貼圖
 function sendSticker {
-	curl "https://api.telegram.org/bot$token/sendSticker?chat_id=$user&sticker=$1$2"
+    curl "https://api.telegram.org/bot$token/sendSticker?chat_id=$user&sticker=$1$2"
 }
 
-# 主程式
-while true; do
-	# 早上 9 點ㄘ吃黃色藥
-	if [ "$(date "+%H:%M")" == "09:00" ]; then
-		sendSticker "CAADAQADWAQAAvoPCRQhPbMdi-bNqQI"
-		sendPhoto "https://i.imgur.com/mfAL4SC.jpg" "吃這顆～" ', "reply_markup": {"inline_keyboard": [[{"text": "😊吃過了", "callback_data": "1"}, {"text": "😢等等吃", "callback_data": "2"}]]}'
-		sleep 1m
-	fi
-	# 下午 1 點ㄘ吃黃色藥
-	if [ "$(date "+%H:%M")" == "13:00" ]; then
-		sendSticker "CAADAQADWAQAAvoPCRQhPbMdi-bNqQI"
-		sendPhoto "https://i.imgur.com/mfAL4SC.jpg" "吃這顆～" ', "reply_markup": {"inline_keyboard": [[{"text": "😊吃過了", "callback_data": "1"}, {"text": "😢等等吃", "callback_data": "2"}]]}'
-		sleep 1m
-	fi
-	# 晚上 6 點ㄘ吃黃色藥
-	if [ "$(date "+%H:%M")" == "18:00" ]; then
-		sendSticker "CAADAQADWAQAAvoPCRQhPbMdi-bNqQI"
-		sendPhoto "https://i.imgur.com/mfAL4SC.jpg" "吃這顆～" ', "reply_markup": {"inline_keyboard": [[{"text": "😊吃過了", "callback_data": "1"}, {"text": "😢等等吃", "callback_data": "2"}]]}'
-		sleep 1m
-	fi
-	# 晚上 11 點ㄘ吃白色藥
-	if [ "$(date "+%H:%M")" == "23:00" ]; then
-		sendSticker "CAADAQADWAQAAvoPCRQhPbMdi-bNqQI"
-		sendPhoto "https://i.imgur.com/8k7dXHM.jpg" "吃這顆～" ', "reply_markup": {"inline_keyboard": [[{"text": "😊吃過了", "callback_data": "1"}, {"text": "😢等等吃", "callback_data": "2"}]]}'
-		sleep 1m
-	fi
+function getRandomPhoto {
+    declare -a PHOTO_URLS=(
+        "https://imgur.com/p3Y0XU8.png"
+        "https://imgur.com/dprdJWv.png"
+        "https://imgur.com/MPdSnBe.png"
+    )
+    echo ${PHOTO_URLS[RANDOM % ${#PHOTO_URLS[@]}]}
+}
 
-	sleep 10s
-done
\ No newline at end of file
+while true; do
+    # 早上 10 點
+    if [ "$(date "+%H:%M")" == "10:00" ]; then
+        sendSticker "CAADAQADWAQAAvoPCRQhPbMdi-bNqQI"
+        sendPhoto $(getRandomPhoto) "吃了嗎～" ', "reply_markup": {"inline_keyboard": [[{"text": "😊吃了", "callback_data": "1"}, {"text": "😢等等", "callback_data": "2"}]]}'
+    fi
+    # 晚上 7 點半
+    if [ "$(date "+%H:%M")" == "19:30" ]; then
+        sendSticker "CAADAQADWAQAAvoPCRQhPbMdi-bNqQI"
+        sendPhoto $(getRandomPhoto) "吃了嗎～" ', "reply_markup": {"inline_keyboard": [[{"text": "😊吃了", "callback_data": "1"}, {"text": "😢等等", "callback_data": "2"}]]}'
+    fi
+    # 晚上 11 點半
+    if [ "$(date "+%H:%M")" == "23:30" ]; then
+        sendSticker "CAADAQADWAQAAvoPCRQhPbMdi-bNqQI"
+        sendPhoto $(getRandomPhoto) "吃了嗎" ', "reply_markup": {"inline_keyboard": [[{"text": "😊吃了", "callback_data": "1"}, {"text": "😢等等", "callback_data": "2"}]]}'
+    fi
+    sleep 60
+done