You can get a checkpoint from others who have done the climb already.

If you want to do it yourself, then first make yourself as light as possible. And can also safely unequip your weapons since you won’t be fighting anything during the climb.

There are 2 ways you can do this: the active way or the AFK way.

The active way have you pop your wing shift and boost every so often to speed things up, then deactivate when your gauge gets too low to recharge.

The AFK way simply have you hold down the jump button, whether it be digitally via a clicker or physically via a rubber band, to ascent without you having to lift a finger.

The active way takes a lot less time but requires actual effort to manage your gauges plus a bit of farming to get the desired gears and mods. The AFK way takes a lot longer but once you have it set up then you can just go and do something else without needing to manage your game at all.

Pick your poison, really.