Have you done any level 2 courses? I don't think you can jump straight on to a Level 3, but I am not 100%.
I am currently on my Level 3 2357 / 2330, I have done my 17th Edition, I am set to do my AM2 in November. Not sure about 2391 yet as I am looking at getting a couple of years under my belt. If you complete your 2357 and register Part P and satisfy which ever company you go with then I believe you can sign of your own work under this scheme.
If I have it wrong I know of the forum will correct me in the nicest possible way :yes:...
Luckily for me I am about to start on a work placement organised through the college, all being good after 6 months or so, I might be offered a job. But that's done to me now..
Good Luck either way Daani