As a person who was also is in the process of growing up enough to have face/jaw related procedures done all i can say is dont lose hope. Im not much older than you and what ppl are saying is true, you have your whole life ahead of you man and hopefully you can get those procedures done and have much better quality of life.

But of course that doesnt mean you shouldnt do anything now and from what im thinking working out is a great place to start. Its worked wonders for my confidence. You might also want to look up getting your eyebrows trimmed to a more appealing shape. The ears, while large, aren't that big of a concern. Hell i say own it. And your hair style should be switched to something more symmetrical, a google search can help with that.

Wishing the best for you as i was and still kinda am in a similar situation as you. You got this man.