How to fundraise for People To people?

I got accepted to the Celtic cultures program and I want to fundraise to alleviate the burden on my parents. However, I've never raised money and I am introverted. I want to raise at least half ($3500) and the ideas on p2ppayyourway don't seem to work for me. I don't really have a lot of friends or family and barely know my community. Alumni or anyone please help!