Hello man, I suggest you can work as a tutor to make more extra money in your spare time. or you can choose to improve yourslef in various ways, such as language skills, computer, or whatever. anyway, only teachers may have such a long holiday, you have enough time to do something different or take some recreation. watching TV series, like many other peolpe do, is also a good relaxation.

Apply for italki teacher and teach foreigners.LOL