I'd fold.
Nearly every doorcard is something you need to improve to a winning high hand.
Two pair cards (6
, 7
), a critical straight card (5
), a straight and low card (4
), and an emergency straight card (T
) are dead. That's a lot of dead cards.
You have the worst low draw, a low-card has already shown strength, and there are plenty of players left to act behind you.
You're drawing poorly to the high and worst to the low.