Reassurance

When an intrusive thought comes I can’t just say “that’s not true” and just move on. I always feel like I have to disprove the thought and be able to say it with confidence but the problem is that the ocd doesn’t allow me to feel and say it with confidence so I get stuck for hours or even days. How can I stop feeling like I need to do this?

Hello! I just got diagnosed with OCD a week ago and joined the app today to find a sense of community. Since my understanding of treatment is minimal at this point, I'm confused why everything on here tells us not to seek or give reassurance? If someone could explain the reasoning behind that it would be greatly appreciated, as I want to make sure I'm not only watching out for it in my personal life but also using this app appropriately.

Does anyone else unintentionally self sabotage their relationships? I tend to seek so much reassurance that they get sick of me. I only seek reassurance because I get scared that they're going to leave me (have abandonment issues) and then it becomes a self fulfilling prophecy because I worried so much that it ends up happening. I get trust issues about my partner cheating because I imagine worst case scenarios all the time and it really strains all of my relationships. Anyone else do this? What have you done to help?