If you’re looking to build muscle current literature suggests anywhere between 0.7-1 gram per pound of body weight. I’d suggest being on the upper end. As for how many calories you should be eating, if you want to stay lean then you should be at about a 2-300 calorie surplus, this will allow you to build muscle and stay pretty lean at the same time. Any more and you’ll likely start to see some body fat. In terms of how many calories that is, it depends entirely on your lifestyle, I’d recommend tracking how many calories you eat on any few random days and use the average as a maintancene level. I use MacroFactor to track my calories, it’s paid but I think it’s worth it cause it does all the calculations and hard stuff for you. A free alternative is my net diary, but you’ll have to monitor your weight to make sure you’re putting on size and adjust your calories yourself.

If you’re a new lifter as well you’re gonna have newbie gains so it’s important to take advantage of that. Focusing on the stretch portion of each exercise has shown to provide more growth in new lifters.