Ok here the things. I'm also facing the same problems. After I have done research here are few things to do:

1) Eat 5 to 6 times a day. Not necessary full for each meal. As long each meal enough number of protein. Breakfast: egg, grain, cereal, peanuts

Lunch, dinner: Eat rice, chicken, fish,

Extra 2 meals left: whatever supplement you can think of as long got enuff nutirens

2) Few rounds you will fill stomach quite full. Ignore it because you must train your body to store extra food that will make your body grow extra bigger

3) Forget bout gain weight supplement. It would not help if you not eat 5 meals a day by just drink the gain weigh supplement.

4) Make sure everytime you feel full and keep eating once you start feel hungry.

5) Once you body become bulkier after few months, start weight lifting. Don't do any cycling or jogging because this program is for slimming purpose. You must built weight resistant to built more muscle.

6) Eat more protein will do the trick.