Dvr never works

Constantly having issues. Freeze,  no sound,  can't fast forward.  I have gigablast, wireless,  newest modem, pods bill over 380 per month.  What am I paying for? I have had 5 technician out in the last year for issues. Cox just wants more money,  don't actually fix anything.  Don't think they have upgraded any fiber optics or equipment in our area in over a decade.  So tired of paying for service that doesn't work.  Time to change,  starling looking good.