> I don't see a route where I could reasonably have much more than say 10 million 10 years from now.

You have to ask yourself this- how much is enough, and how hard are you willing to work/risk for it? On the low end, how much is the minimum, and what pros would make that acceptable, quality of life, risk, anxiety levels, etc.

Your way forward will be much clearer when you know what your parameters are, even though life may happen between now and the end date of your plans.