I can’t stop thinking and it’s becoming bad

Hey guys.. anonymously because I don’t want anyone knowing this is how I think because sometimes honestly it’s just like so bad and I don’t know why I do it...

So I do have really really bad anxiety and that could be the reason... I have not been on meds for it because I haven’t found any that helps me not think like this..

So I could be going somewhere or doing something I could feel perfectly fine and be so happy but then my mind will wonder and think of all the bad possibilities that could happen.. I hate it.

I’ll think like, when I’m driving and if I crashed and if I was dying like what I’d tell the paramedics to tell my family or like if I was in the store with my family I’d think like what happen if a shooting was to happen and what if one of my family members got shot and what I’d do for them and what I’d say to them if they are dying. I don’t feel like this is normal. I gave a brief summary of how it’s like. It can be worse some days where I even like make up situations that happen that are really freaking horrible. And idk why. I don’t want too. I HATE thinking like this. I haven’t told anyone ever. It’s been so bad lately it’s what I think about almost all the time, when I LEAVE the house. I hate it. I tell myself not to think like that to think of good thoughts it’s hard. I’m just terrified of something bad happening when I’m out and about.. is anyone else like this or is it just me??

If anyone has any thoughts on what I should do to get help, like a doctor or therapist or something I’d gladly appreciate it... and please no judgement...