http://bicycletutor.com/
The link above will take you to videoes of " How To " repair, adjust ,& maintain your bike. Really, it would be a good idea for you to learn some of the basics of repairing your own bike. Keep learning as you go, & there will be little that you cannot do yourself. As what was said above, probably $30 in a local bike shop, would get it ready &&& adjusted for you to ride. ENJOY !