It does sound like the wiper stalk is failing. Luckily it's a cheap part to replace and easy to replace in the car too.
You can get one from your local junkyard or from Ebay.
Then you can follow my instructions
HERE to install it.
Those instructions are for installing intermittent wipers in a VX but if you're just replacing the wiper stalk you can scroll down and do just the step for replacing the stalk itself.