how do you handle limerence?

a few months ago, I found out about limerence and that it’s not actually normal, to always have someone you’re totally obsessed with. Ever since high school I can’t remember a single period of time where I wasn’t totally in love with someone. The only way I would get over a crush was to get a new one. When I was in a relationship for three years it obviously stopped, now that I’m single again it started again and it’s exhausting me because I think I don’t even know what real love is, I’m just always obsessing over someone I barely know. I told myself I’m gonna stop seeing ANYONE…. well, now I’m obsessed with a medium ugly colleague at work 😀

Are there any strategies you know/ have against limerence, and how can you tell if you’re really in love or if it’s just limerence?