My hair is all uneven, will this be a problem? Oh, and some other questions.
General Questions
I hope you didn't pay her to mess up your cut like that. You could have made a complaint. I know most people don't like to make a scene. I sure don't. But in some cases it's necessary.
First, never use lemon juice on your hair. ACV is acetic acid. It will balance your pH back to normal after raising it with the BS. Lemon juice is citric acid. it's much stronger acid that penetrates deep into the hair shaft and weakens it. If you notice any lightening of your hair, this is not just cosmetic. It's chemical. It is weakening your hair to a damagingly brittle point.
If you stop using the lemon, and use a little more ACV for the next wash or 2, you may be able to help fix the problem. The little extra ACV will soften up your locks, and might make them come undone a bit, but it'll be worth it to save yourself from the problems that the lemon juice causes