Yes, stop being a wimp. All guy’s balls do that, you’re nothing special. They soon adjust – the ball trap part of a cage isn’t some evil castration mechanism, its two loops with a gap small enough that you can’t pull a testicle through. There’s plenty of room for the scrotum itself.
Keep the rings well lubed, especially if you’re wearing it at night when erections do pull hardest on your balls. Take it step by step, try it for a few hours, then a day, then overnight and build up from there.
So stop making excuses and just get one already.