Guys & Girls, I Need Help!

95 Cavalier 2.2. 5-Spped Manual.
So there i am driving one day when i go to shift from 3rd to 4th. I pull the stick out of 3rd and down to where 4th should have been, and let off th clutch, all of a sudden i'm in neutral. I look down, the stick is wehere 4th should be (at this point i'm scared). So i decide to turn around and head home. Pull into a gas station, u-turn, get out into the road. 1st is fine. I go to shift into 2nd, NOTHING. Same as 4th. Luckily, i made it home.

Turns out, i've lost 2nd, 4th and Reverse. The weirdes thing is, its intermittent. OCCASIONALLY i will get 4th, or 2nd, but reverse is totally toast. I dont think it is an internal transmission problem, because i am sometimes able to get into said gears. So i ripped out the centre console, and took a peek at the shift linkage under the hood. I dont have enough experience to know what's wrong. Can you guys help, or reccomend someone who is able to help me?

You need new shift cables. They only come as the set of both cables. But, that should correct your problem.