I changed it to that about half a year ago, because I was tired of my old name. If you're only playing this long, you will improve for sure. Just don't let your mood get ruined by some random soloQ teammates.
The two-skills per button thing on Lee is also a problem for me, but a totally different one than yours. I get bored really fast when I play champions other than Lee because i just get the feel that i could do a lot more with 7 skills instead of 4. That's also why I started to play a bit of LeBlanc, because she also has 5/6 skills and the juking possibilities with her are just insane.