Homeless in debt suddenly getting major windfall

Long story short, have been in and out of homelessness for about three years. Am a skilled IT technician, am about $20K in debt. Distant relative died and left me a $70K inheritance (these things actually happen outside of Monopoly?). I have no car, no rent, no recurring payments of any kind except a quarterly student loan payment of $200 (the loan has phenomenal terms).

I have zero (0) sound money management skills. Money is fundamentally immaterial to me, I have no control over it and it just kind of comes and goes. But I really like living minimally and frugally, and I like finance as a discipline and have been learning about markets, stocks et c for some time, but still a novice.

Heading into recession within the scope of the above, could use suggestions because I have no idea where to go from here. I hope to start my own business down the line.

Thank you.