Well done.
If it is a colour enlarger, most likely the filter colours are actually cyan (similar to turquoise), magenta (essentially purple) and yellow.
Generally, you don't need to touch the cyan dial for black and white.
The magenta blocks green. Green affects the low contrast emulsion, so as the magenta is increased, the contrast goes higher.
The yellow blocks blue. Blue affects the high contrast emulsion, so as the yellow is increased, the contrast goes lower.
With your paper there should have been instructions regarding what yellow and magenta settings to use to achieve a middle contrast grade 2. If you cannot determine that, remind us what colour head and paper you have and we can probably help.
I like to choose a contrast setting and exposure that gives the best results for the crucial mid-tones. I then use high contrast burns for the shadows, and sometimes lower contrast burns for the highlights. Others work slightly differently.
After 40+ years, I still find it fun!