Need to lose weight (my stomach) by the end of this year. Any exercise tips?

Metalanon
I'm 15 and I hate my stomach and I really want to lose it. I'm still UNDER 200lbs but I would like to lose like 50lbs or maybe more by the end if this year if I could but I would like some exercise tips, eating tips or anything that could really help. Also I have an ankle problem so I can't actually run. But I can do other things so anything will do. Thanks.
Need to lose weight (my stomach) by the end of this year. Any exercise tips?
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