My mac screen is glitching up showing pixels of other open apps all over the screen very often, and my internet browsers, (all of them) are sporadically flashing black and dissapearing.. whats happening!?

My macbook pro screen has been glitching out for minutes at a time very frequently and its making work VERY PAINFUL.  My screen will flash pixels of currently running apps, my dock, internet browser window, and tons of other blobs in betweenheres an exmaple.. Please help me quickly..
Also, my internet browser will go either all white, black or clear for very long moments.. HEELLPPPP
NOT A RETINA DISPLAY MAC... LATE 2009 VERSION
And while im here, does anyone know why my sd card slot wont recognize and why my headphone jack REPEATIDLY turns on the red light after i unplug headphones. I know how to corect it but EVERY TIME. its a major inconvienience to have to switch the switch, q-tip clean it and blow it every time.

This is a long shot but I would suspect there is something wrong with your graphics card / GPU. There was a problem with some Macbook Pro's which used the Nvida GeForce 8600 GT but these were ones built around 2007 / 2008.
It might be worth checking what card you have and to check the serial number just in case as it might be covered - my graphics went in my 2007 MBP when I was outside warranty and Apple fixed it for free.

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