I have a 2000 Mazda B2500 that when I press my clutch it still doesn't want to come out of gear. I have to turn the truck off to get it out of gear and in gear. Any suggestions?

Sounds like either the clutch master cylinder or the slave cylinder have failed. Check the brake fluid level in the clutch master cylinder first. These systems fail when the brake fluid is not changed every two years or the reservoir is overfilled.