I teach both privately, and in schools during the 'normal' working week, as well as recording work, a few bands, performance coaching, and dep work
At every opportunity not only network, but start friendships. Someone that needs a player is going to contact a capable friend before a stranger.
I read an article not too long ago about writing library music for ads/ TV shows etc. all these things can generate income.
You will also need an understanding wife/ spouse/ partner/ family