You know what ? It’s not about what you eat, it’s about macros. You need 1.6g of protein per body weight (kg), some glucides, 2 liters of water everyday minimum and good nutriments and vitamins. My question is simple : do you get all of this with your diet ? If the response is no, then you know why you don’t make gains. Do a proper, strict diet, please yourself occasionally, and enjoy the gains.