Why did you leave the cryptocurrency/bitcoin world anyway? 3 years is a long time, things have definitely evolved and uprooted from their previous state. 500,000 people use bitcoins everyday
My project idea is still in construction but I think that me and the people involved have learnt a lot about bitcoins and its time for us to contribute our time and skill into something we truly believe in 
I would advise you to use the skills you already have and connect them with bitcoins. A lot of people think that there are very low paying jobs or not enough jobs in the failed of cryptocurrency but actually that is nowhere close to the truth. There are many opportunities, people just fail to notice. I hope you make good use of opportunities you discover and do justice by it. Good luck.
Can you tell me where those good paying jobs are? All jobs all I see are low paid, Amazon m-turk type of tasks. The serious big jobs are still being paid on fiat.
As for creating businesses, I cant think of stuff that isn't already there. Casino, exchange, already existing business but accepting Bitcoin.. its not as easy.
Good things are never easy. If you're exceptionally good at something in terms of bitcoins or cryptocurrency, you wouldn't need to find a job. The job would find you, but I'd rather not speak about that now. A better way for you to earn money realistically would be to render services regarding crypto or integrate your personal business with crypto, all of which's success depends on your creativity and smartness. Nobody will hand you a manual.
Yes educating people would make a difference, if you are smart and enough knowledgeable that you can guide them and you can earn money out of it as nothing comes for free, and people would definitely pay if they are getting some good income out of it.