is it normal?

Distance yourself from anyone who annoys you half the time.

It's very common for people to find something about a close friend that is irritating, and we should overlook one or two things as just a flaw since no one is perfect. However,.....why on earth would you want to be around a person who has the traits your friend displays? If I was asked to describe her, I'd say she was a spoiled, lazy brat who's lucky enough to have good genes where she can do anything she wants and not have any consequences. I wouldn't have anything to do with such a person.

Make new friends and curtail the time you spend with this person or cut her off entirely. Don't owe her an explanation as to why you changed your behavior and are not available as you always had been.