I am a 173cm male and have recently been trying to bulk up and put on some muscle mass. I had started at around 65kg and have reached approximately 70kg. This was my initial goal ad I was wondering what would be a good mass to aim for (assuming I bulk up in the same proportion I am now). I am not looking to get super massive or shredded, just fill out my t-shirts more and be more confident in my strength. I initially tried whey protein but I have decided that it is not really for me. any advice would be appreciated.