anyway i think this thread is enough since we have answered everything and i found in OP that he says not being wanted the fixed game and seriously He is only 15 years old?
This is not the right place to this kind of subject and OP is just 15 year old kid he knows nothing the ins and out of gambling he is exposing himself to scammers by asking this kind of question and exposing his age, he needs guidance maybe his parents do not know that he is curios about gambling and this is bad, he could get himself to a lot of troubles at a very young age.
I hope that his parents can watch or closer to him, so he doesn't spend his time searching for the gambling website to just playing gambling. And I really hope that he realizes that he is still young, and he should not playing gambling like the adult people because he can quickly lose his money at any second. I think he needs more activity, I mean real activity and not staying in his rooms or mobile phones to search for what he should not open yet. Even if he has good control, it doesn't mean he can stay calm in gambling because the adult people could easy to lose control.