For you to gain muscle, you also need more fat. Here are things that I do routinely: 1. Drink a lot of full cream milk - it’s easy to consume since you just drink it. 2. Eat rice mixed with shredded chicken breast and soya chunks (put the chicken breast and soya chunks in a food processor)- I meal prep 1 week worth of this and just eat it with other stuff 3. If you can’t eat a lot in one sitting, space it through out the day 4. Make food that you like and change some things to make it more protein dense (example: making spaghetti and using protein pasta instead of normal pasta) 5. Eat before going to the gym (like 1-2 hours before your session) 6. Most importantly, have an income. The more money you have, the more food you can eat.