Going deep on one thing beats being average at twenty. The world pays for depth.

Being slightly good at many things makes you easy to replace, because there is always somebody slightly better at each one. Depth is rarer and it costs the kind of time most people never give to anything. It also makes your other skills worth more, since they attach to something solid.

Choose one area to be genuinely known for and give it the bulk of your hours for the next year. Let the rest sit at a useful level. Depth in one place beats a wide shallow list on almost any day.