I set my expenses every day if how much for foods and other expenses and calculate it for a week.. then if you already a record just use set and maintain it as your expenses every week or monthly if you have a some extra money just save it for future and don't spend it and hold it as bitcoin too and dream and believe that the price o bitcoin will be high and you will be a chance to be a millionaire someday with bitcoin..
I've been at that point and believe me, it sucks and I felt what it feels to be poor to beg. I'm just glad that I have friends that lent me money and I was able to start it out with a small amount of bitcoins and able to get profits slowly.