Yikes.... Tht you're stalling and regressing even is not surprising now that you've explained what you're actually doing. Pick a program and follow it. Make modifications if needed, but don't try to combine multiple programs. That's a virtual guarantee for failure.
The classic/position cycle has more than enough work in it. I think the squats end up at 6 or 8 sets of 4 at its peak volume. You definitely dont need to add strength work.
Like Dave asked, what is your goal? If its making big gains in the Olympic lifts through not just refining technique but building strength in the proper positions and movements, then that cycle is a good one... If you actually do it, which means doing it and only it. If you just want to build more general pushing, pulling and squatting strength, it's not the best choice.
Sorry for typos etc - on my phone