Sexuality

Okay so I have been on a roller coaster of finding out what my label is for my sexuality. I went from bi to pan to lesbian. And I’m 90% sure that I am just lesbian, but I do want to try stuff with a guy(I’ve already tried stuff with girls) just to double check I guess I don’t even know. Is it bad that I want to have sex with a guy to “make sure I’m lesbian”? Also how would I even approach a guy and say “ can I use you and your skills to see if I’m lesbian or bi/pan?” I just need some good advice and insight into this.