Trying to figure out getting out of this short-term mess

So basically I have no savings at all (very smart I know) I have been enjoying myself a little too much this summer and I thought I could magically replenish the funds that I have lost with an inheritance fund that hasn't hit my account yet. This isn't the first time that I have been lousy with my finances; I'm an absolute mess mentally and don't have the capacity to even think straight because I'm so stressed and hopeless. I need to pay off my car insurance and MOT which will be coming up after the 20th of August. I can't even muster up the courage to ask for money, I'm a 24 year old grown ass man and I live rent free as well; they don't deserve to be dragged into my mess. I'm starting the last year of my degree in September, student finance comes in on the 16th of September and I'm not proud of myself even though my grades are good and I'm getting firsts. I also have a studio that I want to move into for the next term but can't afford the £500 deposit; should've thought about that too. Grades wise, I'm excellent but I can't be responsible at all. I have suffered from depression since I was 16 but I'm not going to sugar coat the fact that I am terrible with money and I wish things were different. I am also spoilt and my parents have always done things for me and helped me out financially but it just feels wrong and I want to take the reigns for their sake (but look how its going now!) I don't have a student overdraft or a UCAS number to take the edge off and let me breathe so I can get back on my feet. I've even started selling my stuff on eBay. Anyway, I need a solution or die trying right now and things aren't looking great.