sorry i don't have advice but i would like to know too. one of my biggest and most difficult compulsions is seeking reassurance but it's difficult to find effective advice about this since i mostly check google or news rather than asking people i know.
also it's difficult when your compulsion you feel a need to go through with causes you more anxiety and is potentially triggering rather than relaxing 😢
A good way to tell whether you're seeking information vs seeking reassurance is to see what happens if you don't seek it. If you are simply seeking information, it shouldn't feel urgent or hurried. You'd be okay without it. However reassurance feels much more urgent and important. You can build a hierarchy with your therapist to work up to not seeking any reassurance and practice sitting with the emotions that come up instead. In the meantime, if you are unable to stop yourself from seeking reassurance you can see how long you can delay it. Or only seek it partially.