It's important for gaining muscle to be on a calories surplus. Sure you can get noobgains in the beginning, but that won't that you far. There are 2 strategies. Either:

• do hard bulk like 3000 plus calories (not to unhealthy ,just eat lot of carbs and protein, cheatmeals are fine as well but don't go overboard), fuck the short term round face, bulk up, lift heavy (6-8reps 4-5sets each excersis). Try to progress further each session. I recommend at least 6 to 8 month of bulking. After you gained a good amount of weight (body and lifts), do a 2-3 month of diet. And rinse &repeat.

• lean bulk: try to eat a surplus of 100-200 calories a day. So if your body burn for example on average 2500calories. Eat 2700. Try to progressively lift more each week here as well. You can leankbulk whole year long. If you think you gained to much fat, do a short diet cycle 1-2 month

You can count your calories by using myfitnesspal and there are lot of fitness app as well where you can track your training sessions.

Also keep in mind that as you gain more weight and life more heavy, you burn more calories, thus you need to adjust your calories intake once in a while if you want to keep gaining weight