I am locked out of my tablet. What do I do?

A

AC Question

I have forgotten my pattern lock. I tried to put a pattern lock in, but it was the wrong one. After about 20 times, it asked me to sign in with my Google account. I put in the right username and password about 25 times but it wouldn't let me in. I think it may be because the Wi-Fi on the tablet is turned off. However, I can't get on to the tablet to turn it on, so I am locked out completely and can't get on.
I have turned it on and off several times, and even pressed the little button set into the back of the tablet. It still doesn't work
The annoying thing is that I think I remember my pattern lock.
What do I do???!!!