First ask yourself why do you want to make $300k/year. I had that opportunity once, but upon rapidly introspecting on what I wanted during the interview, I deci

First ask yourself why do you want to make $300k/year. I had that opportunity once, but upon rapidly introspecting on what I wanted during the interview, I decided that I valued my time/comfortableness much more than $350k-400k. If you already know what you want and it is indeed to make big bucks, then carve out time to study to get to the place where you are qualified. Then demonstrate the ability, i.e. open source, work, etc. Relentlessly iterate on becoming more efficient at all areas you fall short in. The secret to professional success isn't really secret - smart & hard work gets you there.