Shifting weird, explain gear lube plz!

[Pimpin Dsmstyle]

SHIT, my car is barely worth 80$ lol. I might invest in a decent tranny and start from there. I'm going to find some gear lube cheap style, and see if that helps any. I figure if there are loose particles from the incident with locking gears, flushing it out might help some. If that helps, I will go with a synthetic gear lube. If it does not help, I will start shopping for a transmission. Thanks for the advise guys.