Everything everyone has told you has been great advise . One thing also is true and it is you have the edge of youth. You can learn so much more now with out effort, as you get older you will not have the same ability to do so. Just go to the field and look at the 20 plus guys trying to learn 3d.Compromise is the key here. Making yourself the best at what you do is important.Giving up some of youre hobby to do good in school is a good compromise. But you should never give up everything. This hobby can keep you happy all youre life . And compared to the alternative adult hobbies its pretty cheap and safe. And what you learn now will make the hobby more enjoyable as an adult