I guess I am lucky as I am 18 and own a "farm". It isn't much right now to tell you the truth but it is a work in progress. It will be for the next 5 to 10 years for the land to be cleared and fenced. I don't live on it though, I am still at home. It has fruit trees, berries, cut flowers, and vegetable gardens. mind you I was able to work hard enough to convince the agriculture loan board to let me take out a loan, it took alot work because I am so young to them. And every day from march to October I am working my butt off to make payments.
Maybe your area has loans made for businesses for young people, they have lower interest rates, but offend expect a good business plan with lots of research. Good luck