K here is the deal. There are 3 type of human body types. The mesomorph Ectomorph and the endomorph. U are Ectomorph by nature which is u r skinny by nature. Ectomorphs are akinny not because any other reason but as a result of fast metabolic activity. Everything u put to your mouth goes to work most of them that's why u r not gaining weight. Here is the solution. 1. Instead of taking big meals two or three times make it 5 times small meals per day. Each in 3 hr difference. 2. Don't jst eat everything especially yegna migib chrash yaqenechiral; rather eat high protein foods such as yogurt,meat,rise, oatmeal /qinche/ and mnamn. 3. Along with the diet try working out a bit some workout moves avoid cardio exercises. I hope it'll help you. But always remember controlling your weight.k