Care leaver support
If you're a young person with care experience, your council has a duty to provide you with financial assistance once you turn 18. Your council should give you a leaving care grant of over £2000 to furnish your accommodation, and further financial support with costs for education, employment and training.
The Who Cares? Trust has created a factsheet which lists the financial support you're entitled to.
The Care Leaver Covenant has a directory of over 2000 opportunities for care leavers, including discounts, free tickets, and opportunities for employment and training.