We played paintball on Saturday afternoon. It isn't something we do often. In fact, the last time I played was a year ago. It's a time consuming and expensive proposition around here - sort of like skiing if you live in an area where you can ski, but not next to the slopes. You have to make a commitment to go and there are lots of factors you can use to justify not doing it.
Two of my children were interested but then weren't. There was concern about what, exactly, it feels like when a paintball hits you. There was concern about how long, exactly, we were gong to be gone. There was a general sense of, "How can it be fun enough to be worth going."
It was fun. We were gone most of the day. And depending on where it hits you, a paintball might really, really sting. My kids learned all of these things, tasted victory (and paint), and are still talking about it. Niether would have gone if we hadn't provided a little push.
If you're struggling, accept the push when it comes. Find people who have your back and will get you through. And once you are zooming along, give someone else a push too. It may be just the thing they need.