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Here is what i can tell you. dont just be a "programmer" Choose one hard topic and master it.

I suggest stuff like Cryptography, Machine Learning, blockchain technologies, networking, low level hardware programming stuff. That is what i think guys in 30's should be good for, the hard things all the kids run away from.

Things like web development are nowadays too crowded with young talent that, even if you get employed. you will feel weird. around teens and young adults.