Should I do this? I really want a job in the film industry?

I am thinking about sneaking into Pinewood Studios just to get the experience of being there and see what its like. I am 19 and will be starting a very good university in September to study Film Production. However, I worry all the time that I'm not good enough so I want to get onto a film set in the summer just so I can watch professionals and learn from them.As I just cant seem to get a job there (have rang multiple times. sent loads of emails) I will have to turn up uninvited. I have just about enough money to get there (its 300 miles away) and stay in a cheap hotel for a few weeks. The problem is, I really need a paid job because I might run out of money fast. If I actually manage to get in is there a chance I might get offered a job somewhere (i dont believe that there are no jobs at all they are just not giving me a chance)?? I do have a lot of talent - withot sounding conceited - I just need more experience on a real film set. I am totally bored at home and think this might help me for the future if I can get good contacts. Its my dream to work on films I dont think I would be good at any other kind of job. However, my family think its too much of a risk and stupid because I will be spending money like crazy just to live there and could end up getting stuck?? Should I take the risk and do it anyway?