I might try to export my game for multiple platforms if it's possible as mobiles have a lot of limits and I have never tryed it and don't know how difficult it is.

I really advise you to look into engines. A pre made engine such as unity or unreal engine 4 will solve your quality, creation time, and portability issues for you and give you a massive head start. For example look into my journals, in my signature. My game "Firework Factory" was written from scratch in DirectX 11 and it took months, the end result not looking professional or polished. Portability was out of the window. Then, compare to my current project "Seven Spells of Destruction" which looks a lot more professional and could be ported to xbox one and ps4 with nothing but access to the dev kit and a press of a button, technically. Both projects use mostly creative commons licensed assets except for a few that are custom or paid for.

Good luck!