Probably not the best place to ask but how should I properly deal with losing friends

I've lost quite a few friends in 2018 and a few this year for various different reasons, my advice is really basic - just keep spending time with people who still give a damn about you and show you care about them. It can solve so many problems.

Again all this blind hatred. You don't have any right to say these horrible things to anyone. I hope you somehow manage to find a way out of this black pit of emotions you re in cause you re bound to hurt a lot of people and yourself in the process otherwise

Decide whether its a friendship worth trying to rekindle or to abandon it. If they were people who ignored you, your problems, and what you have to say....get over them. But since you said you two just stopped talking and you think you could've done more to maintain it, its up to you what you wanna do since none of us here know your situation better than you. Getting over someone, even friends is by no means is that an easy thing, but don't let people who aren't apart of your life anymore drag you down when you could be searching for people you can fuck around and have fun with. That being said, if you think they're a person you want to stay friends with and you genuinely want things to be different, the best you can do is talk to them. If they still don't want to forgive you or friends even after communicating with them and letting them know what you want, then its best to move on and learn from what happened so it doesn't happen again. That's the best you can do. So deal with it as best as you can and get past it so you can get on with your life.