/r/ukpersonalfinance can probably better help you.

Double return after each item in your list will give it a new line and make it much easier to read.

You list $1880 worth of monthly expenses without food, fuel for the car, insurance, clothes or any personal or household items, and your income comes to $2083 a month (Assuming that's gross so take-home is likely less). That's before taking into account the mechanic or anything else.

You need to reduce expenses everywhere you can, and increase income however possible. Not sure how child support works in the UK but you need that income. As for the car you need to determine what all the warranty covers and doesn't cover. There should be a contract associated with this. You should also look into any social services to help support you, food stamps, welfare etc.