Anything else I am not considering?
Become a trainer and do disguised ninja spams on t2w. It pays a little.
If you can do 1000% returns, why do you need any money at all ? But a mechanical system will surely get you a minus 1000% return in no time. The banks selling positions to you can't be dumb as simple mechanicals, or every curve-fitting joe blow would be taking money from them. Instead the banks' tally shiny buildings are made from joe blows money.