What are the most important lesson your mistakes have taught you?

I've mad a lot of mistake in my life which I really regret so badly.When I choose to do thing I want in life and I was over enjoyed it,and I didn't notice that my life was being damaged.Of all the stupid thing I've done.I won't listen to other's advice,even I know it's good for me.But, I rather to make stupid mistakes and hurt me.I didn't value my life.

I think I am usually to trusting a person and what I have learned from my mistakes is that trust has to be earned and if you break that trust it is going to take you longer to earn it back. Never get involved with anyone at work, do your job, and keep to yourself. Take the time to enjoy life with your family, because nothing else matters after that.