First, zero judgment on quitting an intolerable job. That took a lot of guts, so good for you standing up for yourself.
Second, you don't need to panic. You currently have almost a year's expenses in savings. I know you don't want to use up all of that, but this is what it's there for. So you have time to recover from the bad job and get your head and your life in order. I repeat: this is why you have a cash cushion.
Third: I have to believe that the CC debt is adding stress to your life. What are the interest rates? The amounts you owe are very small, so I would strongly recommend that you take money from savings and pay them off all at once, right now. You will still have plenty of cushion. And also, please stop focusing on how much available credit you have left on each cards. That suggests that you think it's normal to be in CC debt, and in fact that having any room left is some sort of an asset. That is simply not true. Yes, it's good to have available credit for if and when you actually run out of money -- but that's not you and that's not right now. Better to get back to zero on those cards and get used to keeping them there (but do keep them open as an additional safety net).*
The apartment is a gamble. If you find work soon, it's not a problem; OTOH, that rent payment is the single biggest hit to your monthly budget and will drain your savings faster than anything else. So what would give you more comfort, make you feel more secure -- having your independence in your apartment, or being free from the four-figure rent payment but dealing with your mother? There is no "right" answer here except in hindsight, so just make the best decision you can and move forward.
Really, I think the most important thing you can do right now is spend some time on your own mental health. You do not need exclamation-point-financial-"help." Your finances are not "dreadful." That is panic speaking, and panic is not your friend. A) it jacks up your stress level and prevents the healing you need to recover from the job, and B) employers can sense desperation like a wolf can sense fear. You need to be conducting your job hunt from a position of strength and confidence, and that's something that's hard to fake.
And you deserve to feel that. Look at what you did: you walked away from a soul-destroying job. You saved up almost $30K in accessible cash that allows you to ride out a pretty good storm. You kept your expenses pretty low, and even if you did get caught up with too much easy-money debt, that is something you can easily recover from. Yes, you are not perfect, but who is?
I think you might feel better if you had a plan. So, for ex., you decide that you're going to pay off the CC debt this week, you're going to look into swapping the phone and getting out from under that debt next week, etc. -- put things on the calendar so that you can feel you are making progress. Then give yourself a timeline, e.g., you know you have plenty of money for a year even at your current spending level, so you will give the current job search 6 months, and if that doesn't pan out, you will start to look for any other job that will bring in cash and look hard to see if you can find someone to take over your lease (or see if your landlord will waive the cancellation penalty). That way you can rest easy and not fret so much about the lack of income, because you know you're going to take action before your cash runs out.
Good luck. I am sorry this happened to you, but you will make it through.
*Added bonus that using little to none of your available credit will significantly help your credit score, which will get you a better interest rate if you do refinance your student loans -- I don't know if you'd be able to do that without a job, but you'd probably want to wait until you can get the best interest rates anyway, which means getting your other debt taken care of.