I was in the 70s by that point, and felt a bit overpowered, if you've made it this far into the game, then you're good enough to go all the way now.
If you made it there you should be enough level for it, and level shouldn't be a problemsince you can heal talking to caroline after entering the depths, so if anything you can grind just there.
That makes me feel betterI was around the low to mid 70s.
And oh wow I didn't even notice her standing there. Her tsundere healing will definitely help.