My 2003 suzuki grand vitara turns over yet wont start this happens randomly. It sometimes grinds when I mess with it too much, usually if I leave it alone for 10 min or so it will finally catch and start, but something is wrong HELP!!

The grinding is usually related to a worn starter in need of replacement. There may be burrs or broken teeth on the flywheel. You would need to inspect.
The hard start could be anything.When was the last tune-up? How are the filters? Has the engine light come on? If so were any codes retrieved?