How bad is it to have a blackout for the 1st time and literally don't remember anything?

I was drinking with friends but this time went for the stronger drinks. The problem is I don't remember anything from last night. The last thing I recalled is talking to my buddies, having a great time, dancing and the music lights.

Then nothing else. I had a blackout for the first time. How bad having a blackout and not remembering anything? Should I be worried I can't remember anything from last night?

How bad is it to have a blackout for the 1st time and literally don't remember anything?
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