Feeling lost

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?"

I feel so sad, alone, scared and hopeless. Until two months ago there was not even the remote possibility of being anything other than heterosexual and now the idea that I could find out that I was lesbian or bisexual terrifies me to death. Everything was born from the fact that I didn't feel sexual desire towards my ex-boyfriend and I started to be afraid that it was because I was a lesbian... how can I be a lesbian or bisexual if everything was born from this? I would like to run away from myself and my head. I would really like to go back and go back to my life before. I can't take it anymore. I just want to live my life like before

maybe i dont want to accept the factvthat i lost feelings, maybe i never actually loved my boyfriend and i hust wanted a relationship , i dont want reasurance, but in very scared i dont love him, because it feels real. im scared