I do textures and 3d models. I have done some minor freelance work in the gaming industry and also have a page where i sell my textures: www.handpaintedtextures.com. Trust me if i can YOU can ! just pick a goal and practise everyday !
Here is a good place to start learning painting:
[link] short tutorials, easy and great ! [link] (Livestream tutorials)
If you like my stuff please like my page on Facebook: [link]