Every razor is an individual when it comes to honing,,, not every "routine" applies to each razor you come across.
Once you set a bevel & get it to shave ready,,, leave it & just maintain it.
Picking random razors from Ebay to practice on,,, well,, you are asking for a challenge, so you get what you ask for.
Honing is like any skill, it is mastered over time, not in a set amount of time.

Bevel setting varies from razor to razor, with a lot of factors that may only be relevant to that particular razor.

When it gets to be a burden/stressful , put it down for a while, cause all progress has stopped at that point.