Becoming junk

I have had many issues with this thing. My 1st unit I had replaced via Amazon because the screen was glitching out. So this being my second unit the screen would still glitch out I would just take the unit off the wall and plug it back in and after a few minutes it would reset…. Now the big issue is my fan runs constantly and my electric bill was over 300 dollars…. Going to go back to my ol faithful Honeywell thermostat