Home internet speeds extremely inconsistent and connection drops intermittently

I received my home internet 2 days ago and I have a gamer at home who uses it constantly. Well the connected LAN was only giving us <10 and it was connected directly! I called in and I live  in Florida so they informed me that they are working on the towers that are close by me. So I have to wait 2-3 days. I am hoping this works out I work from home and Comcast is expensive and network is lagging so much here if I want a good deal I have to resign a 2-yr agreement with them and I honestly don't want to as I can't even only get internet I HAVE to get TV and cable in order for my bill to go down. I will update in a few days to see if our internet is doing better with T-mobile. My boyfriend and I are really trying to be positive about the issue with the inconsistency of the speed and believing it can be the "fixing issue" they are doing