Yo Matt, hang on tight. It can be tough some times but hey, you are not the only one. Try to accept it and accept yourself. Diapers are just another type of underwear, ofcourse a less common one. Try different types and brands so you can have on type for each occasions also so you can know which one works better for you. try to relax when there's a lot of people around cause no one ever notice unless you are naked (diaper on). Try to wear a bit bigger or longer t-shirt if that makes you feel more secure.
Let us know about all your questions so we can advise you according to our experiences.
And yes I became incontinent when I was a kid, (now I'm a Young adult) So yeah, I wore diapers through school, dates, parties, sport, etc.... Still am obviously.
Steven