The interactive website that partners The Car and Motorcycle Theory Test book
 

I have (recently) passed my driving test and I have my pass certificate but have not sent off for my new licence, (I still have a provisional licence) can I drive on my own? I have insurance and the owners permission?

Yes you can.  You should exchange your provisional licence for a full licence as soon as possible although you do have two years after you have passed your test.  Failure to obtain a full licence within that time will mean you have to re sit your driving test (theory and practical).

You can drive on your own but you cannot supervise a learner driver.