The OU can be quite a long drawn out way of getting a degree. Although, with the responsibilities of being a working adult, it's sometimes the best way to get your qualifications.
However, research the career path you want to take because theres often alternative qualifications that are more specialised, but just as recognised.
I looked into computer science and theres a company called Treehouse, that you just pay a monthly fee to download lessons. They also help you find work at the end of the program.
Good luck!