Hey, (M18).
I've been through some things in my past. It's something that will stick with me and I will simply have to accept it as there's no way to change what has happened.
I've learned from it, but it still was a big issue to me somehow, like a trauma of some sorts that would make me feel sad at times, even when I'm not thinking about it.

Well, my first step was to remember the past, see the issua at hand, no matter how painful it is.
Again, I accepted it and tried to move on, looking forward to not make the same mistakes or even hinder others from making mistakes I have made.

What I'm currently doing is improving myself by listening to audibles about psychology and various topics that may help me get better.

But my next step is to seek actual help from a psychologist and have a full conversation about everything, about my past everything that could be a trauma or not, I can't be to sure, but best if I mention every detail.

Some time ago when I was younger, I believed that suicide was all I had left as even those who I thought I could trust betrayed me, but I still moved on somehow.
I don't want to sound arrogant, but I thought, that this world doesn't deserve to lose a kind person like me. 
Yes I do have my issues, everyone has, but I eventually learned and improved and I'm looking forward to even extend this improved even further.

I'm very optimistic about the future and everyone should be. All we can do is to learn how to take control over our thoughts and feelings, that way we can reduce the amount of mental pain we inflict ourselves. 
If you get in an argument or lose a friend/family/loved one, you can learn how to make the pain less painful and not last for too long. 
This is what I wish for everyone.

- Andrian