Hi, please give me tips that how can i gain weight fast?

Personally, I played a lot of table tennis and ate on a schedule. The key is to create a calorie deficit so you lose weight.

Gaining weight in a healthy manner involves consuming more calories than you burn, focusing on nutrient-dense foods. Incorporate protein-rich foods like lean meats, dairy products, and legumes to build muscle mass. Include whole grains, healthy fats from nuts and avocados, and consider strength training exercises to promote muscle growth. It's advisable to consult with a healthcare professional or nutritionist to develop a personalized plan tailored to your needs

Swimming saved me, I still go to the pool regularly to keep in shape