Hey Donna, hi from the uk. As has been said there are so many variables in airbrushing, between different brands and models of brush, brands of paints, whether they are waterbased or not, tranparent or opaque etc. And as mentioned tanked or tankless compressors, whether you have water traps etc etc. So info needs to be pretty specific then folks can give you the advice you need.
Add to that some photos of what is happening, and if people can see the problem that could help even more. Giving up is for quitters LOL. There is a fairly steep learning curve, particularly if like me you started out knowing that people pointed an airbrush at something and a painting came out, and that was basically it. I didn't even know you needed a double action airbrush. So all hope is not lost. I eventually got it into my lonely brain cell, and if I can , you can. Just help us to help you.