tmobile home internet speed issues

Seriously guys, I don't know what many of you are complaining about.  We live in a semi-rural area and the best we get first thing in the morning is about 15-20 mbps down and usually less than 1 mbps up.   When we first got this about 4 months ago, we could stream live sports with no buffering, no issues whatsoever.  It freaking rocked!!!!  However, that was short-lived as now it just crawls.  I have rebooted, unplugged, cleared messages, done the technical support stuff, and its still slow.  We have ZERO secondary signal.  When I first got this, I was so hopeful because of my dislike of ATT but it is worse.  The only benefit of the T-Mobile is there is no data cap like with the AT&T version (150gb).  However, the T-Mobile speed makes it unusable except for general browsing only and that's about it.  For comparison purposes, we have ATT version as well, and we get 35-40 mbps down and 20-25mbps up.  I know its not great but thats the non-satellite options we have in our area.