How do you decide on things?

Problem: I want to start riding horses again soon so that i may show again this summer.  The women's horse I showed last summer, well she's not the best person to say the least. I'm not sure what would happen if I showed back up there, literally. Omg the stories I have.  OR should i go to a new stable, that i know nothing about, and not even sure if they'll let me show their horses?

Maybe I could check out both?