Is it normal to not like people in general?
Yes, it’s normal to feel that you don’t like people much, especially if socializing drains you or you’ve had bad experiences. You don’t have to enjoy everyone, though it’s worth noticing if the feeling is making you lonely or causing problems you’d like to change.
Yes. Plenty of people find others irritating, exhausting, or hard to trust—especially when they’re stressed, need lots of alone time, or have been let down. You don’t have to be a people person, and “I’d rather be on my own” isn’t a character flaw.
There’s a difference between not enjoying much company and feeling so angry or disconnected that it’s affecting relationships or keeping you from things you actually want. If this is a recent change, or it’s making your life smaller in a way that bothers you, it may help to look at what’s behind it. Otherwise, you’re allowed to keep your social circle small and be civil without pretending to adore humanity.