In my case, when my game goes to hell, I'm typically trying too hard to do better. Mentally not concentrating on the shot itself. Trying to hit the ball harder. Rushing the shot. Last week was one of the worst days in years.
Went to a Par 3 9 hole yesterday. Par 27 and shot a 32. Happy with that. Things were much better when I didn't try too hard.
Heck, even the pros don't do great all the time.
I’ve always said that I am proof-positive you don't need to play well to have fun at golf.
HOWEVER, as a newer golfer, I thought I’d finally begun to conquer the game last year, when I began to break 100 fairly regularly. My handicap dropped to the mid-20's—the average for U.S. women golfers. I fully expected my game to continue to improve, and then the exact opposite happened: my game went to hell and continues to WORSEN. Handicap Index is back over 30 and trending ever-higher.
Golf is much more fun when I play well (by my own standards). Now there’s a shock! 😏
As @Grizvok stated, start a ‘My swing’ thread and you’ll get some excellent swing advice. Take a look at this thread too.
Now I understand you were ‘feeling’ you were making brief swings. But in your video you are making very little shoulder turn and essentially lifting your arms up and a little back. You then release early and flip through the ball causing your club head to over take your hands and chicken winging your lead arm. Check out the link I posted regarding the centered pivot.
Pro v1 for me.
Even as a modest player (averaged around +20 for a while) as soon as I used this ball I dropped a couple of shots the next round, and it wasn't coincidence. After buying new clubs and going to pro v1's I dropped 6 shots in about 3 rounds and can highly recommend anyone thinking of trying them to just go for it and see for yourselves.