Hello Friend, Good that you are seeking a help here. You seem to be on a underweight and can understand your emotional stress with this problem. I need to understand more about your food, lifestyle, efforts already tried etc to suggest . There are many suggestions and solutions to gain weight, however it will differ based on individuals  body type . So it's better to first understand your body and mind constitution to go for a right solution, otherwise it will not give results.. Aa am also an ayurveda wellness coach, I can guide you on the suitable solution available in ayurveda for such problems. Feel free to reach out to me online for further evaluation and recommendation. Be positive. You will be alright soon.