Fear of the future

sometimes, to try and prove my fear wrong i’ll be like “ okay, let me think of this REALISTICALLY. would i REALISTICALLY feel this way or do this thing? “ then i come up with scenarios in my head on how i think i would realistically ( or logically ) do something but then my feelings go against that thing i thought of then i start getting anxiety and start to fear that i would actually want my fear to happen or that i’d feel a certain way that proves my fear true. it’s basically just checking how i feel about something i think of to try and prove my fear wrong, checking my emotions or checking how i think i’d realistically feel towards it.. but then i may react “ unrealistically “ it goes wrong and i freak out

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?

Does anyone else ever feel like this? When you're having a good day without a lot of fear after having multiple days of fear, you start worrying that your good day will be ruined by fear again. It's like anticipatory fear. Anyone else get this? I hate it but I don't know how to make it stop