Aww, that's very sweet of you to say
For most of my work, I use standard preset round brushes- they come ready with the program. Toward the last of the painting process, I add in some texture over the image with custom brushes. Most of my custom brushes are just simple dots for pores and hair or shapes for jewellery- easy and fast to make and use.
Also, there are a lot of really great brush packs around if you don't feel like making your own!