Here is some info on farmwork and living in the country:
Farmwork requires some skills, although farmers are generally willing to teach people as long as they learn fast. Keep in mind that each hour of teaching is an hour the farmer needs to pay you for not doing anything while he also does nothing. Petty bourgeoisie people have a lot of work and risk associated with their job, don't waste their time or patience.
Depending on where you work, you might get to drive a tractor. If you do, please be careful. I have witnessed people doing the most retarded shit with heavy machinery, causing huge damage. Some older machines might have quirks or faults, listen well when you are being told about those because a tractor can break it's attached machinery if it's not used right.
If you work with animals, you will be working with animal faeces. I've worked with cows and have had to deal with a lot of literal shit. You need a certain tolerance for bad smells from the start and that tolerance will grow fast through constant exposure. Make sure you can handle being covered in shit sometimes or wearing shit stained work clothes. You can always shower afterwards.
Farmwork is NOT factory work. You go home when the work is done, not when your contract tells you your hours are up. If you follow these rules, you'll get to experience some not alienated work, the faster and more thorough you are, the better the animals will live and the sooner your free evening will begin. Small farms are prone to various catastrophes like animal breakouts, you might get called on during your free time, prepare for that.
Some farmers offer their workers free housing and food or reduced rents for houses they own. These places range from regular houses to slave camp tier shacks, depending on what sector you are working in. Be polite when eating dinner with your boss, you'll either have a closer, friendly relationship with him or you will hate his guts and probably leave depending on how you act towards him and his family in such situations.
Farmwork doesn't pay that well. German farms are generally underfunded so don't expect huge salaries. Still, employers are desperate and take any idiot they can get, so you might be able to haggle a little, just make sure that your employment doesn't start with blackmail, that will lead to quit the bad time.
There is usually little to do in villages. You have some Fests like 5 times a year, most of those will consist mostly of old people. To do anything, you'll have to drive to the next city, which is usually at least 30 minutes off. Make sure to buy your groceries in bulk so you only need to shop once a week. This requires some planning and personal discipline. If you want friends that you can meet regularly, there is little choice. The kind of people in your age that haven't been drained away to cities yet tend to be quirky at least. Some might have inherited a farm or just love the country life but the overall concentration of lolcow tier people is high in villages. Either have low standards or reduce your social life to the internet.
Feel free to ask some more questions.