Making mistakes is not a big deal. This is what I think...
It's like trial and error, then you know which is the better one, or which is the correct way...
Making mistakes is one of the critical ways that people learn.
Sometimes, it is okay to make mistakes.
However, it is important to keep making new mistakes!!!
Repeating the old mistakes will make you looks stupid...
It even make you feel yourself a nuisance in the crowd...
Keep apologizing for the old mistakes, are not worthy...
Once or twice might be acceptable, but too many times are unacceptable...
So, when you make a mistake, it gets you curious about how to fix it.
Don’t spend time trying to find the source of whom or what to blame.
It's useless... Finding the source to blame the thing, blame the people, blame the environment actually makes you feel better... But at the same time, make you looks stupid =.="
You should figure out what you can do to prevent the mistake from happening next time and remember it. Your mind will stop you, remind you to not to do the mistake again...
Move on!!!
Don't feel sad or bad for what you have did wrongly in the past!!! ^^