Socializing can be draining as I am introverted and have social anxiety. If I am really feeling depressed, irritable or something it can make me miserable. However a lot of the time with the right people I find it helps me feel stable. I can get lost in a rabbit hole in my head and socializing can ground me, in fact it's one of the more important things I do for stability. In the wrong mood I just can NOT handle it though.
I find setting boundaries to be helpful. Sometimes I get out of sorts because I sort of agree to an open ended socializing like going out with a group of friends. I instead am trying to encourage myself to do things socially, but limit it to shorter periods, or give myself permission to say when I am done even if it's only been a short event. That way if it starts to make me feel overwhelmed I can just go, and this takes the pressure off a little so I am more likely to feel motivated to socialize again next time. That's just something I found that works for me personally.