diff --git a/lib/core.go b/lib/core.go
index 7385522..cd76551 100644
--- a/lib/core.go
+++ b/lib/core.go
@@ -303,7 +303,7 @@ func Clip(in io.Reader, out io.Writer, wi, hi, x0, y0, x1, y1, quality int) (err
 	return nil
 }
 
-func WaitStudy(user *User) {
+func WaitStudy(user *User, id string) {
 	i := 0
 	for i <= 180 {
 		score, err := GetUserScore(user.Cookies)
@@ -314,6 +314,7 @@ func WaitStudy(user *User) {
 			score.Content["article"].CurrentScore >= score.Content["article"].MaxScore {
 			return
 		}
+
 		time.Sleep(10 * time.Second)
 		i++
 	}
diff --git a/lib/tg.go b/lib/tg.go
index 3cf2844..a0eb194 100644
--- a/lib/tg.go
+++ b/lib/tg.go
@@ -313,9 +313,8 @@ func study(bot *Telegram, args []string) {
 		defer datas.Delete(u)
 		core.Init()
 		defer core.Quit()
-		go core.LearnArticle(cookies)
-		go core.LearnVideo(cookies)
-		WaitStudy(&User{Cookies: cookies})
+		core.LearnArticle(cookies)
+		core.LearnVideo(cookies)
 		core.RespondDaily(cookies, "daily")
 		core.RespondDaily(cookies, "weekly")
 		core.RespondDaily(cookies, "special")