Brute Force?

During the weekend of August 3-4 I logged into WP Admin and updated to the latest version. Then, during the following week I tried logging in again and kept getting incorrect password errors and I couldn’t even access myPHP. I contacted my web host (Gate.com) and evidently there was an error on THEIR end that they say would take an endless amount of research in determining the “why it happened”. They finally were able to fix it so I could get into myPHP, so I changed my password from there. It didn’t work. So I tried again, following Word Press instructions on how to reset it. Still didn’t work.

That was two weeks ago and I STILL can’t get into WP Admin. I’m at a loss…this is my BUSINESS website and the longer I’m down, the longer I’m losing money. Gate says it’s WP’s issue now and I’m wondering if I was a part of the Brute Force hack. But, that was several months ago. Need help resolving this ASAP, please!!!