Realistically, you will need to borrow money at some point in your life. What is the first item you are considering borrowing money or taking out credit for? How will you budget or manage to ensure you pay your bill on time to build your credit? What other steps can you take to build your credit on this loan?
To answer your first question a car would be great to borrow money for to budget or manage you might get a loan too much loans though could get you in serious debt. and lastly you probably should get a job.