Looking At That Person I Was

I am not a person who as done nothing wrong,
Like many people I regret things I did when I was young.
I lost a few friends along the destructive way,
And even though its in the past, what I did will always stay.
I cannot say sorry and I can't say why,
I don't think I knew what I was doing but it was enough to make anyone cry.
I can't excuse my behaviour, I knew what I was doing,
I tried to get out of it but I knew I would be runined.