I started trading pre-off horses back in mid June - I had a bad back injury and had some time on my hands - I was also thinking I might well need to find a way to earn some money lying on my back

I read Goat's thread a couple of times and made some progress - Kai suggested each day noting down one's biggest error and then making changing that the next day's goal - that and a bit of screen recording made a huge difference - by the end of August I was B/E after commission (return of -0.01% on stakes) which seemed pretty good. I checked the figures in mid Sept and they were the same - win rate 50%, 30% losing and 20% scratch - average loss bigger than average win. I've heard Peter say many times that you just have to figure out how to nudge a B/E strategy a little to produce a profit - so that's what I figured was next.
I guessed the win rate would improve as I got more experience and that there wasn't an obvious way to change that. My average win was badly affected by my habit of taking a bit off when it goes my way - I rewatched a few races and realised that doing that left a huge amount on the table and my average loss was probably badly skewed by some a smaller number of bad losses (I don't go in running). These seemed like easy places to start and at first the results looked positive and then something changed - suddenly I'm behaving like I was when I started back in June - chasing prices, getting whipsawed out of positions and then jumping back in only to find I'm on the wrong side of the book again and then trading things I shouldn't trade because I want to prove to myself that I can do this - and so end up proving the exact opposite.
My reading of various forums over the years suggests that my experience isn't unique - its like the first sniff of the possibility of success has completely derailed me - I find it really frustrating and that frustration feeds the problem. So maybe I've haven't got a question exactly - but if anyone can tell me why, after taking two very slow steps forward taking two back was so quick I would love to know .
Thanks for reading
B