I need a new clutch and secondary cylinder

This is common when the slave cylinder is leaking. I am attaching a lot of information on this but this will give you all the info that you need to determine what the issue is.

Starting with this guide on what happens when your clutch is not working:

https://www.2carpros.com/articles/clutch-doesnt-work-sometimes-or-not-at-all

Followed by videos of how to replace all of these components.

https://www.youtube.com/watch?v=EpBMj5ZY_bo

This video shows the job being done on a similar car but the process is the same.

https://www.youtube.com/watch?v=JpzefqEeVGE

Run through this material and let us know if you have other questions. Also, I attached the info from the manual on the slave cylinder. I would recommend inspecting the friction disc and make sure that it is not contaminated with fluid. It will need to be replaced if it is.

Check out the diagrams (Below). Let us know what happens and please upload pictures or videos of the problem.