I doubt it, unless you're a complete vegetable.
About the worse that could happen is breaking a new string by stretching it too much. A guitar is basically a piece of wood with a few gears on it.
There's not that much that you can break unless you're really trying.

Dude... go to the library, surf the web, buy a book or whatever and just learn how to do it. Check the guitar manufacturer and see if they have their own site with tips on it. Sign up for High Bandwidth for a month and watch a video showing the whole process in detail. It's really not that hard.
Asking this question is kinda like asking 'should I tie my own shoes or get somebody else to do it?'