My vacuum is making a horrible noise!

\015 I’ve had this vaccum for about two years with no problem. Then all of a sudden I’d turn it on and within a few seconds it would start to make a horrible loud sound. Sounds like a blender on a rampage. I cleaned out all of the dust and hair and made sure the belt was fine. It also has a burning smell if I leave it on too long with that sound going. Is there any way I can fix this myself? Because I’m way too poor to bring it somewhere or get a new vacuum...Thanks to anyone who can help me!..Jamie\015 – Dirt Devil M084600 Dynamite Bagless Upright Vacuum