Depending on how confident you are after doing level 2,you could do the following. Buy the level 3 book as we as GN3,OSG and BGB. Read these until you can understand them then go and do you 2382. Make up your own test rig and buy yourself some testing gear,so you can start basic fault finding.
While doing the above you will need to either look for an employer or start doing basic jobs for people ( you best get PLI).