Back in the saddle after 15 years.

Yep its been 15 years since ive built a model and wasnt vary good at either. but since i was diagnost with a chemical inballence my mind tends to work better. never building a model with the intent to make it look real, just recently getting back into the hobby without ever painting with an air brush or weathering, iam finally getting a badger cresendo 175 from dixie art now i have to figure out how to use it. I used to paint in an auto body shop with my dad but i dont know if thats the same. So any tips on weathering, paints of tips would be useful to this 33yr old fartLOL

Thank You
Rob