I can't do it, lol.

I've been looking forward to trying this. even seeing how large it was, I figured it had to be doable since they were made for females bodies. but, after about 15 minutes of attempts, I've given up for this morning. I have difficulties getting it in very far before it tries to unfold, then when it does, it is severe pain. I tried to continue pushing it up, but the pain makes me tense worse and i have to abort. I'm assuming it is related to my muscles not being able to relax, and I try, but it is not working. It hurts like when I got my pap smear, that didn't stop hurting until the thing was removed, lol...

so, any help to make this thing useful, make my muscles relax would be nice. I'm going to attempt again tonight, and tomorrow, and so on and so forth until I get it to work, but if I'd like any advise i can get.