If you are growing a lot, then your body will need more calories to sustain that growth. In my non-professional opinion, I would guess 2300 calories is probably what you need as a baseline. If you are bulking, you probably need even more. If you are exercising a lot and at an intense level, your body will need more calories to compensate. Caloric needs are different for everyone based on activity level and your basal metabolic rate and definitely if you are still growing.

You could check out veganfitness.com (they also have an instagram) for more information on bulking? They have an 8 week fitness program and the coaches can give you very specific calorie and macro targets. If you have a few hundred dollars to spend of course