Just run as far as you can without falling to your doom and then swing if not I don't know what your problem is
But you will have to master that because this level has about 40 of those and if you can't do that you're screwed
Location: The Well of Ancestors.
You are the Dark Prince.
Quickly wall run right and DaggerTail a lamp from platform to platform to beam.
Quickly jump left, DaggerTail a center pole and swing across onto a chain.
Quickly descend the chain. Quickly drop down onto a wooden beam. etc.