We all make mistakes.
And we shall continue making them for as long as we live.
No doubt about it.
So it's no use harping on the past.
No use hating being the way ALLAH s.w.t has made you to be.
No use reminiscing the past. Much worse, dragging the people who used to be part of your past with you - especially when they have clearly moved on.
The only way to go about it is to move on yourself AND learn from your mistakes.
Sometimes, it's our attitude that we have to change.
Not our gender.
Not our family.
Not the environment.
Not the government.
Not the world.
But just our blardy ATTITUDE!
Simple as that!