I'd go with 1 brokerage, Index fund most of it, keep 20% cash for misc investments (ethereum). Hire a trustworthy accountant. It's only money. Now you have so

I'd go with 1 brokerage, Index fund most of it, keep 20% cash for misc investments (ethereum). Hire a trustworthy accountant. It's only money. Now you have some, congratulations. Get back to focusing on the things that matter!