Hello, I would like to request a review on this correspondence game. Most specifically I’d like to know how I could have better converted my early game advantage, but any feedback or directions for further study would be appreciated.
I’m basically the same rank as you, so this may not be insightful…
but a couple of times you failed to convert advantage by playing moves which have a “why did you do that?” element. These moves are ones that that had obvious followups from white which you appeared not to have considered, and resulted in you tenuking away from a dead stone
Why did you do this:
https://online-go.com/game/77264476/65
if you were just doing to do this:
Ladder Challenge: rainywisp(#1423) vs Anton26595(#862)
… if your opponent was going to care about move 67, then it was sente on move 65 anyhow.
Similarly
Ladder Challenge: rainywisp(#1423) vs Anton26595(#862)
… it was obvious your opponent had to rescue the stones … so you just gave them your stone?
In the section of play from move 67, it’s not clear what your goal was. The main remaining unclaimed space was in the middle … you moves appear to force the opponent to claim the middle as they responded to you. I suffer from this challenge myself … but I guess solving it starts from awareness 
In the gradual decline after move 130 it seems to be all about “tiny errors accumulating” … the difference between a few points of each move. That’s a tough one!
At first glance it looks like you didn’t make use of the ponnuki on the top left very well. You could’ve attacked the white stone on top when you had the chance. M17 also looks more like you are defending rather than attacking. Could’ve gone stronger to attack white instead. In the actual game white managed to gain territory in the centre which was what caused the loss IMO.