For colleges use this
www.gov.uk/student-finance/extra-help
If you don't want to use a random link, on the college site look under fees and financial help.
Have a look at your college site as well as they also do various grants depending on circumstances. If that department is open even better, give them a call and they will go through what's available.
If you do decide to study do get the student discount card, it pays for itself very quickly and if you use Amazon, prime is cheaper for students!
Also have a look at entitledto there might be more grants available.
Regarding UC apply anyway if you already haven't, grants/loans iirc aren't paid out until early October.
Also have a look at OU. Many of their courses don't require the same entrance criteria as brick unis. There's also the flexibility you might need because of childcare etc, it's mainly all online. Plus, funding is different and you could be able to get UC. Many single parents I know, myself included went the OU route.
Good luck. If you cannot start this term, don't be deterred. Some courses have a second start date in January/February.