First post.  Been a lurker for a while but only in fall of 2019 have I started playing in league.
Probably been covered many times but please, be gentle on a noob.
Tonight I played my absolute worst.  I knew after I lost the first two racks (8-ball) that I was in trouble.
So, how do you turn the tide?  I could not "see" shots.  There are only so many times you can stand back up when you know you can't see the shot.  I stood up so many friggin' times tonight because I could not see a shot it was embarrassing, and was close to being called for slow play.
What do you do to turn it around?  I lost EVERY RACK tonight.  I missed straight shots.  I made difficult cut shots.  I missed easy shots left.  I missed easy shots right.  I was a total hot mess.
I tried going back to fundamentals: contact point; stance; stroking through the cue ball; stroking through to the contact point.  NOTHING worked.  I tried relaxing. I tried being analytical.  I tried saying "f-it" and just trusting my line up.  NOTHING WORKED.
When faced with a couple of bad racks, what do you do to get yourself back in the game?!?  
Please note I have recently been practicing and have a new mantra for me that worked very well: contact point; foot position; stance; get down on the shot; confirm contact point; align shoulder; ensure follow through to the CB to the perceived contact point.  I have practiced and have been very happy with the results.  But in league play tonight I couldn't make a shot to save my life.
Mental tips MOST welcome!!