Is there anything I can do when I'm lost in a cave in Minecraft?

I got myself lost in a cave in Minecraft. I broke my only pickaxe. I can't make another because I don't have a crafting table and also lack the materials needed to make a new one. I tried following the torches I set up along the way but it didn't help much. I ended up going in a lot of circles. I'm in very deep in the cave (where there's lava and diamonds). I don't have a map nor compass. The only thing I can think of is digging straight up until I reach the surface, but that would take forever since I don't have a pickaxe. Anything you recommend that I do so I can get out of here?

Your best bet is to get to the highest point of the cave and dig straight up (Place torches down when your mining up so gravel doesn't suffocate/kill you).

Just find the highest point and punch your way out, it will take a while but it seems that is you only option.

Tip: When caving, place torches on your left hand side, when wanting to come back the torches will be on the right meaning you're going the right way.