Hi Sciroccoaustin, (can we call you Austin?), welcome to the Practical Caravan forum.
You've done exactly the right thing by checking first rather than simply hooking up without and thought for the legalities.
The basic information that you need to start off with is in the Advice section of this website
Click Here to have a look.
To put it simply first of all you need to know the maximum kerbweight of your towing vehicle.
When you know what this figure is, find out the maximum authorised mass (the maximum weight including the gas bottles, battery and anything that is inside the caravan) of the caravan. The max. caravan weight must not exceed the max. kerbweight of the car.
Add the two figures together and if the end result is below 3500kg you are ok but check the towing vehicle handbook to find out if there are manufacturers overall towing limits or a maximum towball noseweight for your car.
As for not being able to see behind,
On some caravans it's possible to see through from front to back with the curtains open, otherwise use towing mirrors to give a better view to the rear and exersise care and consideration for other road users whan towing.
I'm sure that you will have a few more questions before you embark on your caravan adventures so don't be shy, ask away and I'm sure that we'll be able to help.
Good luck and if your licence allows you happy caravanning