I am just level 1, but I am a hair away from level 2. If the possibility exists for me to level within the adventure, I could quickly make any adjustments for the new level and be at the required level for the adventure. Otherwise, my character's a Bard, so I'll be sticking in the back and supporting allies with Inspiration and such. At the DM's decision, I could hang in the back, do my Bardic things, and stay alive supporting the others.