When I say I have been at this quite a long time, it is absolutely true, because I have logged more hours in the Courtroom than most of my colleagues in my particular peer group.But that is besides the point, because nothing about that changes the nature of the information I am providing.I have routinely argued and had upheld, in my jurisdiction, attorney fee provisions for 25% of principal owed.

Since this is such a dynamic environment with the potential for high returns, over and above what people can normally get, I set the interest rate (really discount rate, but lets not get fancy) to 40%.

Even then, the “big boys” playing with leverage in the markets you mentioned routinely run into issues using leverage.

Some great books that will help are: No brainer, "Rich Dad Poor Dad" changed my life and how I think about money now,"The Miracle Morning", having a routine in the morning was the best thing for me. 

Not looking for anything fancy. 

@Virginia DamatoDon't know if any of these will strike your fancy, but here is what I've read/reading in quarantine so far:-Margin of Safety: Risk-Averse Value Investing Strategies for the Thoughtful Investor-Destiny and Power by Jon Meachem.

They're called letters or certificates of estoppel, a fancy name for a simple thing.

It's something that looks important and fancy,  but doesn't actually tell you anything about business performance.

It is routine to get potential client information (to ensure an attorney isn't adverse to the potential client on another matter) and to get information on known adverse parties for the potential matter of the potential client (to ensure those adverse parties aren't existing clients) prior to accepting a client.Furthermore, taking on a client without checking for conflicts may cause the attorney or firm to have to get rid of existing work they have for existing clients.  

But keep in mind the job of the insurance company is to try and avoid paying claims.They don't build fancy offices and name stadiums paying out claims.