I see that when your opponent plays in an empty corner you like to immediately attach to (i.e. play right next to) their stone. That is very unusual, and you will probably do better if you keep away from your opponent. What you are doing will often plunge you straight into a fierce fight where you are at a disadvantage, being one move behind.
I also wonder if you are wise to have 59 games on the go while only having completed 15! One of the difficulties about learning Go is that you often suffer for your mistakes long after having made them (because your opponent leaves the local situation till they think it is worth playing there) — by playing lots of correspondence games you are amplifying that problem.