How do intrusive thoughts look like ? Coz sometimes it’s like my own voice in my head that says unpleasant things and then my logical side reply’s back like ew no

I have intrusive thoughts about God. But sometimes it seems like I do think them myself. I don't agree with them. But it's like I get too exhausted to fight anymore, or when my mind calms down, I don't feel right without the thoughts so I think them myself and idk why. I'm pretty sure I'm going to hell.

for me, it's like there's two folders of my thoughts, 'main thoughts' and 'sub thoughts' and it's like a background voice of my background voice, you know? like so quiet and irrelevant but it's still here and i can try to ignore it but not fully and it feels like it's just really nasty, like it's warring with me, never shuts up and just keeps nagging me with those thoughts

Please how can an intrusive thought be distinguished from our own thoughts ?