in terms of programs, there's various resources. Mike Tescherer I'm sure has stuff for sale at reactive training systems (don't know the url, google it). Barbell Medicine has templates for sale on their site though I think they're a bit pricey and I get not wanting to fork over cash at this stage. They do have a free 8 program called the bridge:
https://www.barbellmedicine.com/the-bridge/ (there is a v2.0 but that costs money, this one is still fine). Now, you're not exactly the demo for it, but it's a good intro to:
1. using RPE
2. programming with wider exercise selection
3. programming in some conditioning
If you stay strict with rest periods, it wouldn't shock me if you make some progress on this, especially in the work capacity department.
You don't HAVE to do RPE based training, either, there are plenty of pretty well thought programs based on %s. Plenty of Sheiko templates you could google around for, though those will mostly exclude the press.