Hiya Jonny_T_F,
From what you’ve said I would guess that you have a good head start on anybody else who doesn’t yet have a car license! 
I also guess that you really do have a good idea of how to approach roundabouts and even about normal driving position etc. in wagons. I think someone like you will end up being a good truck driver when you have passed your cat C etc. You are already highly motivated and will be easy to teach. Believe me I do know what I am talking about here.
I wouldn’t want to try to dissuade you from training for and taking your vocational licences and I think you should get stuck in and go through the process as soon as you can afford to.
So here is my advice on swatting for your theory tests.
The cost of the car theory is about £35. Book it on the internet, you can get dates a week or so in the future quite easily. You will need a credit card or maybe a debit card. Make sure you are CERTAIN of where the theory test centre is located because they are hardly ever at the same place as the driving tests are taken.
Learn your Traffic Signs - there is a booklet you can buy with them all in.
Get a copy of and read cover to cover the DSA Official book -
“Driving The Essential Skills” Just read about 5-6 pages at one time. dip in and out whenever you can without boring yourself.
READ the Highway Code from Cover to Cover, but don’t try to read and learn more than 2 pages at a time. Keep a copy of the Highway code with you all the time and flit into it whenever you get a spare minute or so, but DONT read / learn more than a couple of pages at a time.
Learn Overall Stopping distances OFF BY HEART and split them into Thinking Distance plus actual Stopping distance. I repeat - Learn this off by heart like your times tables. There is no other way really.
Learn the different speed limits for different types of vehicles - off by heart.
This is how I had to do it.
Learn about basic First Aid because the theory test seems to include quite a few questions on this subject and the answers required are mostly AGAINST INITIAL COMMON SENSE! (but they are correct, its just that we wouldnt instinctively do what they suggest)
Practice, practice, practice your multiple choice questions and answers using your CDROM. GET THE LATEST that you can find. Dont use one from a friend if it is more than 3 years old.
Make sure that you are CONSISTENTLY scoring at least 48 correct questions out of 50 BEFORE you take the real test because you will get 4 - 8 questions wrong on the day SIMPLY from NERVES or self doubt!! You need 43 out of 50 to pass.
Make sure that you practice marking some questions for you to go back to and double check your answers. Use nearly all the time available so you are sure that you have FULLY READ and understood the questions. Watch out for the questions which are sneakily asked in the NEGATIVE case , e.g. Which of the following things are not the right thing to do.
Make sure you practice at least 5 dummy hazard perception tests on your computer at home BEFORE you take your real test.
The DSA hazard perception test is POOR as it is based on some little spotty faced undergraduate’s idea of when somebody (like them) would have seen the hazard and clicked, not when a real experienced driver would have seen it and clicked. I once got a score of ZERO because I saw all hazards before the computer thought I would and it ignored my clicks. (I didnt realise that you need to further click as the hazard develops into a near death experience!)
Dont click in a rhythmical fashion and dont click at random.
Just do a couple of dummy runs without really trying too hard and you will soon learn when the computer program behind the test thinks you should click.
Dont think that you have to move and point the mouse on each hazard, you dont need to , you only need to click ANYWHERE on the screen when you think you see a potential hazard and then click about 3 more times if you see the problem actually develop.
Finally, you must pass BOTH the hazard perception AND the multi choice theory test at the same sitting in order to pass and get your certificate.
when you turn up at the theory test centre, YOU MUST HAVE BOTH PARTS of your provisional licence with you.
MAKE SURE that the photo LOOKS LIKE YOU NOW, not 2 or 3 years ago. Last week I actually WITNESSED a candidate being denied his test because the photo wasnt quite enough like him.
At the end of the test, remember to collect your provisional licence on the way out and KEEP the PASS CERTIFICATE SAFE as you will definitely need the number from it to book your driving test and there is a slight chance that the examiner will ask to see it at the start of your driving test.
I’ve said a lot, but I am sure somebody as motivated as you will find the whole thing really easy.
So just get stuck in there and good luck. Keep us all informed on how you are progressing.
regards,
landyLad
Thankfully a mate of mine is giving me his books and dvds he got from the driving school I’m going to be training with 
