true vault hunter mode with my current character? i already finished the main story.
Once you defeat the final boss, you should see a message saying you’ve unlocked a new playthrough. The next time you start your game up, instead of hitting “Continue”, hit character select (Y). You’ll then have a choice of normal or true modes.
Note that you can switch between these without losing any gear from your inventory or upsetting mission progress in either one. IOW, you can start the story over in true mode, and keep dropping back into normal if there’s a side quest you want to complete.