Great update, Kevin!
One can see that you deal with cryptocurrencies deeply.
When it comes to nano and IOTA I went for IOTA till now, since they have a more advanced development than Nano I would say (regarding partnerships etc.)
Have to take a deeper look at Nano as well.
Better use of time in cryptocurrencies: less time trading and speculating. More time time learning, building, and writing about cryptocurrencies.
I can totally agree on this one.
If you want to make improbable profits now go for trading.
If you want to invest in future, go and have your research