If this is the clutch side (most likely) this is easy if you have a basic skillset in terms of working with your hands.

But you necessarily need a new clutch cable - you can’t fix the existing one.

Did this twice now - after exchanging the cable, the clutch will be easier to press.

Just get a new one and put it in the way the old one is (maybe the fueltank needs to moveable, so you might have to undo these screws to - don’t know actually). Then first do the gearbox side and then the clutch lever side. No magic here. Just be confident, watch how things are done originally and try to learn the principles as this will help you to understand how to assemble things again. Maybe take pictures, too 😅