Say it again! You can finish high school while studying computer, and the two go hand in hand! At present, there are many open online classes, which are recorded by teachers from world famous schools. The content is easy to understand, the key is to learn English well.
Netease Open Class, coursera, codecademy, these are all good websites related to learning computers, so you can pay more attention to them yourself! Besides, there is always a way to solve things. Don't give up easily!