Blue mage is a job. It has a skill called self destruct. You can use it in city states to kill yourself. Your friend (a healer) can then climb the tower so far and throw you a raise. You raise to their spot on the tower. Rinse and repeat aaaaaaaall the way to the top.

Or as said get the free wedding package, marry a friend. Then use the wedding ring that has a built in teleport to your partner, to teleport to their location at the top of the tower.

Your then free to repeat the tower if you want to do it legit, to your hearts content without the stress of failing since you’ve already got the objective

Otherwise just take your time. If it takes 3 hours let it take 3 hours. Don’t push yourself and don’t rush it. Take a break between jumps and ideally if you have to stand on a peg till morning so be it. I find it easier to climb during day hours so if I’m on it over night I just wait the night out or use sun minion for some light on tricky jumps.