Financial Advice?

Hey guys, just looking for a little bit of guidance.

My current job situation is pretty good for a person(s) of my age, yet I still have a bit of trouble actually saving money, i'm always out doing something, spending/wasting it away on something, that however isn't my issue.

I'm wanting to have a few things done to my car, sooner than later, and rather than saving an extra (roughly) $2,000 for what i'm going to want done, would anybody consider taking out a small personal loan? I know that the Financial % for interest is going to make it so that I'd end up paying another $4-500 overall in which I could've just saved up to begin with, but back to the point I just can't handle saving that much due to my immaturity, among other things.

As well as this small loan, has anybody had experience with it? My parents of course advise against it and just recommend that I save my money if I'm wanting to purchase something, etc,etc; But i'm in the go-go-go mindset and want to have this done ASAP, so what do you guys recommend?

As well as this loan, I may throw in another 800 or so for my old College loan that fell through after being withdrawn from 2 courses two semesters ago.. (They billed me after I got withdrawn which = NO financial Aid)..

Just looking for a little advice, thanks in advance!