Sorry about that, after a long day with head in the ATPL books I needed a little release!
They are various options open to you. First you could try to convince a nice bank manager to loan you a large amount of cash - you probably need about £50k and do a full time integrated course with someone like OATS or Cabair. Remember though you are going to have to start paying it back pretty soon, and at the moment getting a job with 200 odd hours at the end of your fATPL training is going to be a massive, perhaps insurmountable challenge.
More realistically is to get a job and start working your way up the wage ladder. Save up about £5000 and do your PPL. Save up a bit more and get your Class 1 medical (£500) and then do your ATPL distance learning theoretical or full time course (£2000- £2500). Then you will probably need a loan to cover all the rest of your flying to get your licenses and do your Multi Crew Course (£2500 pounds).
Then you will join hundreds of other wannabees dreaming of one day being a 737 first officer.
Good luck