That's a shame how friends tend to turn rotten. Reading your expectations for yourself also felt a little bit too much. I think it's reasonable to accept that we do not always do the right thing (you did say try, in fact). I am glad that you do not disappoint yourself, although this cannot be said for everyone ;)
They turn rotten more than not @poetrybyjeremy, which is why I only have a select few. I will always set high expectations for myself, I may not always reach them, but I will always try.. and when it comes to not disappointing myself, I used to... all the time. But I realized that beating myself up did nothing for me but make things worse. Everything can be a learning experience, and if you're learning and you're growing and working to be a better person than you were before, there's no reason to be disappointed. We are human after all and prone to make mistakes, but they turn into life lessons when we learn from them.