I have farmed under all sorts of conditions on all sorts of land in several countries, with a big range of tractor makes and sizes, and anything over about an acre needs some sort of mechanical help if you are a young, big, strong, fit person. At your age (a bit younger than me) you will kill yourself without it.
It sounds as if you are inexperienced with tractors. A proper agricultural tractor is essential because it is built to deal with slopes and uneven ground. At the same time there is one simple rule - ALWAYS travel up or down hills, NEVER across them. You have no hope whatsoever of getting off a rolling tractor. Again the right young person can sometimes do it.
As for exactly what you do need, then I strongly suggest you find a couple of knowledgeable people (any one person will be biased) to advise on a make and model. It will need serviced and perhaps repairs from time to time, and you do not want to have to travel 200 miles to a dealer. Most manufacturers make what they call "compact" models - that is proper tractors but built lower to the ground to give more stability through a low centre of gravity. I currently use a New Holland 45hp 2wd compact, bought new and it is as manouverable as a little grey Ferguson with a lot more pulling power and the advantages of 4wd and differential lock. One last point, be very wary of fitting a front end loader and travelling with it loaded and lifted. Your centre of gravity is moved high on these occasions. Unlike virtually everyone who posts on TBN I have farmed without FELs since 1979, finding a box on the back just as easy to use for anything I need to do.
The important thing is do as whistlepig and jerrybob advise. Feel safe at all times, and you should be.
