Can I represent myself in court?

If you think "is that allowed to represent myself" is a sentence, no, don't represent yourself until you finish high school (which you've also posted).

Unless you're a lawyer, you're going to be "cutting your own throat".  Law is much more complex than you think.........there are many rabbit holes that you don't know about.  Keep the lawyer.

It is, but you can't appeal if you are convicted and use lack of counsel as your basis for it.

If you understood law all that well why did you hire a lawyer do you know how to file the official court documents and to make motions in a court of law?

Unless you know what you're doing I would highly advise you to keep a lawyer and to listen to what that lawyer is telling you to do.

If you don't you might end up in a heck of a lot of problems

If you think "Is that allowed to represent myself" is a question, I'd suggest that you not represent yourself.  And your partner, Barry, I know nothing about him.

Is this related to the same sex relationship you have with Barry.  I'd suggest you find a Gay Pride attorney who will represent you without charge.

Why don't you ask your "boy" Kyle or Joel this question?

Sure can.  People who represent themselves usually lose

buy a 40 metre truck and reverse it through the courtroom.

He who represents himself has a fool for a client.