The problem is that is VERY (read impossible) to see what you are doing wrong UNLESS there is someone who knows looking at you and point the problems.
Some weeks ago a friend and I went to the pool and he was able to use hi go pro to film my free style stroke. We were able to id many areas of improvements. Up to that day, i could have swear i was doing everything by the book and correct.
Now, I am like starting from 0 when it comes to swimming. I had to relearn how to do the free style. It was quicker this time around than when i first started (in 2016). Today I did my fastest 50 ever…at a BLAZING speed of 47s! (coach had me at 45s). We did 3 50s at the pool to end the session. And my times were 50, 47 and 49. Last year at this point i was doing maybe 57 as my fastest!
So times are FINALLY coming down. But it took eyes on me to finally see improvements!