Getting a provisional is the easy part- minus being without your passport. Its actually pretty easy, go to a post office and get the forms, fill out the forms, get a passport size picture taken, go to your local DVLA so they can sign you off (unless you've been here 3 years, I think it is, and have someone who can voutch for you) and then they will send it to Swansea, and you'll get your passport and license back within 3-4 weeks.
Its the taking of the actual test parts that are hard.
I disliked the theory test and I hated the practical test even more. But I passed (first time around too) and I don't have to worry anymore, thank goodness.
You basically just send off your information (passport, marriage certificate, application form) pay for it and they give you a provisional license.
Curious, why did you have to send your marriage certificate?