Nothing is weird when it comes to what arouses us. We are all amazingly, wonderfully different, and whatever works for you is good!
You’re lucky to have such sensitive nipples, don’t stop enjoying them.
That said, for most the clit is really where the action’s at, and the greatest pleasure comes from exploring and playing there. So keep trying new things, check out some of my guided masturbation instructions too
https://female-orgasm-denial.tumblr.com/post/117626700838/guided-masturbation-an-orgasm-denial-task
But also, just enjoy what you like most! Nothing is weird, everything is good.