Heeman,

As you'll be a graduate I'd recommend getting on a course with EFI101 or a similar propper training provider and learn how to do it. It'll set you back a bit of £££, but most banks (HSBC do anyway), offer a graduate professional studies loan, of upto £25k. Go see them, explain your course, prospects etc, explain how they'd be enhanced by this extra professional course, how you plan to deal with reayments etc.

I'd stick to doing tis proffessionally, there are a few guys on here who leanred mapping through a bit of self study, trial and error etc, but thats not going to get you a job with the likes of Cosworth, MSport, McLaren etc, which with you degree I'd imagine you'll want to be doing in the future.