Help me with weight gain?


I’ve been struggling trying to gain weight and I don’t workout crazy (like maybe every other day). I was 97 lbs and I’ve been sitting at 103 lbs for 3 months already. I’ve been trying to gain ever since. No matter how much I eat, I just go back to 103. Would someone please guide me on how to gain weight all the while having a nice physique?

Btw I stand at 5’1/ 5’2

P.S. any tips on what foods or workouts to grow the booty is also appreciated!