Hey LeafyStar,
Do you know anyone who works in the 'big town'? You could maybe get a ride there (and back?) with them.. Or check the car-sharing websites (there's even a Facebook app I think!)
(Not sure how safe or normal hitchhiking is where you live, where I live it's quite okay to do it if you know what you're doing... There are hitchhiking forums and info online too, if you wanna check or learn..)
Or see if you can get discounted bus/train tickets etc.
Do you know anyone in the big town you could maybe stay with, at least overnight, or go partying with friends and stay at their place for a weekend or a few days? (Or just visit and go to the seaside etc if you're not into partying etc) Relatives or friends or friends of friends can come handy...
Do you still have a room at the uni? (& are there more moneymaking opportunities there?) Some people stayed at the campus for the summer, found some summer work and/or went to language courses or such...?
Are there any workshops/camps/internships/volunteering or moneymaking opportunities that you would be interested in?
Some jobs/volunteering opportunities come with a place to stay...
Otherwise, you could pick a project or a few - maybe to learn something interesting online, or DIY some neat things etc.? Read books, make furniture/websites/arts'n'crafts.. etc. Start a biz or write novels or whatever you might be interested in...

Easier to do when you're still a student and have 'safety' net of 'studying' and not having to earn real money at the time...
If you do need money, check any moneymaking opportunities online or in the better paid areas.. or even go for the lower paid stuff/volunteering, just to get out a bit and meet some people? Some volunteering gigs can look good on CV too or can lead to later paid gigs..
Are there other bored people/students out there? Could you guys organize something? (Some people if bored start a band

)
Any kiddies that might need babysitting or someone to play with them? Or tutoring? (If you're up to that?) Do the library or church or local tourist organisation or other organisations organize something? Any touristy places that might need help?
Not sure what your interests are... Even small towns can sometimes surprise with interesting things though... (Or you can 'escape' to bigger cities!!

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