I have been dwelling on the same thing since February. It’s awful. It feels suffocating. I don’t even know what to do anymore. I hate myself for it

Does anyone else experience this lingering fear and anxiety because they think they’re capable of hurting someone? It’s killing me. I feel like I’m such a danger. I feel like I’m a predator. I feel like this awful person and I can’t shake it. I want to carry on with my day but I can’t. I don’t feel like I deserve it. I feel like I’ve done awful things. I can’t stop crying.

I haven't been officially diagnosed with OCD but when I learned more about it, I never related to anything more. A little back story: when I was younger, there were a couple of youth suicides in my area and the schools felt the need to have someone come in and talk about suicide. Well the person they had come in did a horrible job teaching it and basically made it seem like the smallest negative emotion or feeling or change in behavior made you suicidal. This ended up scaring me so much that I got horrid anxiety. Fast forward to now, Everytime I feel anxiety and panic, I fear I'm going to kill myself. Everytime I feel down and depressed, I fear I'll end it all. I'm scared to be around anything sharp because the "What if" I hurt myself comes into my mind. There are always intrusive thoughts at almost every point of the day. And it's not only for me. Everytime I hear someone being negative, I fear they will be suicidal. I know in my heart that none of this is true but it's terrifying me that it's stuck around so much that it makes me scared that maybe it is true. I've had a lot of death in my family in the past year and a half and a lot of other family drama that I'd never had before that is now also bringing up existential intrusive thoughts. And I'd never questioned anything about life before but now I get the "why is life like this?" and "does anything we do matter?" and I hate it. I don't want to think like that. I just want to go through life being able to handle things normally again. It terrifies me even right now going "what if you give up?"

Two things are happening: I get thoughts that just keep looping. They almost feel like song stuck in my head. Also, I’ll imagine something and I feel my stomach drop. Then as the seconds go by I keep getting fragments of the this thought but with different details. For example, it’s kinda like how a “vision” is portrayed. I’ll get a glimpse of the thought and then it’ll rapidly expand into something worse every few seconds. I don’t know if I’m causing this or if it’s just an automatic thing like any other intrusive thought. It feels unavoidable, idk if this is a compulsion or if it’s just another manifestation of an intrusive thought. Apart from that remembering an intrusive thought triggers the full thought again and then it just keeps looping or expanding. I don’t know how to stop any of this. Help?