Welcome to the site, good people and good information here.
What AIRBORNE_RANGER said, plus dont’ get too carried away, start slow, make a list (the never ending list) and do projects that fit you and how you want the truck. Make sure what you are getting into before starting a project, ya right as if any of us do that, but think about what you want to do before doing it.
Search the site and then ask questions.
Chk out the “How-To” Section, there are a lot of good write ups on different mods.