Need some cup advise.

Mona • Cat Mom 🐈

I want to love my cup, but I still don't have the hang of it. It leaks. I do the whole making sure its up there and the seal bit. I have 2 cups that I'm still trying. Super Jeanie (L) and Luna (S). I got two different sizes because I thought I was not one size or the other. No kids (human🐈). I don't know if I should keep trying out other cups (brands). Do brands make a difference? Is there anybody out that didn't get it right on their first cup and bought another one?

Thanks in advance 😊