Why do I deal with this?

[GeorgiaDetailed]

I’ve come back from a works night out celebrating a colleagues milestone birthday. Whilst I enjoyed it I can’t now sleep worrying how I came across. I wasn’t drinking or anything like that, so no worries there but can’t control the overwhelming thoughts of what others may or may not think.
I’ve no idea why I’m like this and I can’t get back to sleep. Has anyone gone through this?

I try to remember that I'm the only one sitting here thinking about how I came across - other people will not be. Yes, occasionally people will think something about you, but it will still be fleeting because it's their own lives that fill up their thoughts. Still, I do get it and it is a very common worry, so you're not alone there. It's only quite far into my adult life that I've really realised it's actually ok (to be expected even) if some people don't like me and it would be a travesty to let it bother me to the point of feeling miserable.

I just remind myself that noone is actually that invested in me and doesn't care.