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Obviously your results will tell you if you are improving

You can use a dull practice razor or similar to practice the motions.
As with shaving, angle & pressure is everything. The edge & spine...

I suggest re-honing.... & then reassess your stropping skills

Not likely ruined. More likely poorly stropped & easily repaired.

People buy "shave ready" razors & sometimes they ain't, sometimes they are.
The same razors can be poorly stropped by the new owner & alongside with inexperience in use, first shaves can be...