How can I find the motivation to engage wholly in 'normal' life activities without always questioning the?

fact that I feel there's possibly no point to doing these things anyway (studying, working a sh*t job, partaking in the rat race), sometimes I just think there's no point to any of that....but I guess I dont want to feel that way. But sometimes I feel I just want to move to the countryside and having animals, and grow my own food, and make money from that, and volunteer helping people who need it. Sometimes I feel I dont want to do a degree, whats the point anyway??? In anything.