Dark.Pch, your taking yourself too hard. I take myself hard too, but you have to remember that this is a game! Your a great player & an amazing Peach! Maybe you should take a 2 week break from Brawl, & then...everything will come to you! All of your techniques/strategies will be a lot better, because you will end up dropping your bad habits.
I will write a blog next week about my experience w/taking a break from Brawl & focusing on my life. I really was spending too many hours & too much time on Brawl, when there were many prevalent things I needed to be doing. I have to take this week off, because I broke my promise to myself by playing Brawl this weekend. I know this may sound hard, but you should just try to forget about Brawl for 2 weeks(really really hard) & focus on your life! None of your skills will drop, because your so familar already, it will come back in a matter of 5 minutes. I tried this, & the first time I played Brawl again, it was like a foreign language, but it all came right back!