fuck that shit.
i hate it when everyone recommends some 165 pound dude to eat 6k cals a day, that's fucking ridiculous. even if you were on deca,test, and dbol i wouldn't recommend that many calories. there'smore to it than just raw calories and "Training harder".
eat smarter, train smarter. get high protein (1g per pound minimum) in the form of real food (red meat, fish, eggs, chicken, turkey, pork, lentils, chickpeas, beans are all high protein foods) with maybe 1 whey shake pre/post workout. don't think you can just drink whey and get built. have a good amount of healthy fats (and a little unhealthy fats are okay too) with some good carbs.
rome wasn't built in a day and your body can only use so many calories to build muscle, as long as you're in a decent calorie surplus (500 cals over) that's all you need.
no need to get diabetes, a spare tire, and crohn's disease because you want to be bulked up.
take your time, slow steady gains are key, and your health is important so don't eat 6k cals a day, try maybe 2750-3000 and you'll put good size on.
and you aren't like one of those super lean ectos so you don't need ridiculous cals like that, you WILL get fat if you eat that much and you will feel like ass 24/7.
eating a surplus is important but take your time and do it right.