Is it bad to isolate yourself from everyone?

I've always been an introvert with hardly any friends, or the friendships I've had are super strong but few. Currently, I'm 23, and I'm just exhausted from people completely. I haven't even been socializing that much (besides newly working at Starbucks while in school) and after my shifts, I'm so drained. Even before I worked there though, I've increasingly become more and more isolated but I don't find an issue with it. I just feel guilty when others want to see me and I don't know what to tell them. Or when I get asked out by guys but I don't want to go out or form anything with anyone, I just want to be alone to read, listen to music, create art, and watch movies and go outside and just do anything I want to do without having to remember I should do this and that with another person. I feel like people are getting mad at me, especially men who want to see me, I even had one guy tell me off very rudely, even though I honestly told him I am currently just wanting to be alone physically to restore myself. I really don't know how long, but right now being around others is so entirely draining. Is this okay?
Is it bad to isolate yourself from everyone?
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