I may have to do an aurbrush tute for you!
I have used dinky doodle which is good but you cant adjust the airflow. I now use Clairella one which is still within the same price bracket but does make you able to change the settings.
There are more expensive ones on the market which i will possibly build up to but i find these fine to start with and still get a good professional finish.
Dont be afraid of it, it can be your best friend! X
Zoe @ sweet foxylicious x