If you would like to become a Bitcoin and Blockchain expert, follow these steps:
Read up on Bitcoin and Blockchain Wikipedia articles.
Read a book on Bitcoin and Blockchain; I highly recommend Bitcoin the Expert Guide be me Thomas Meyers.
Buy a few bucks worth of bitcoin and play with it.
Every month, attend at least one local meetup or event on Bitcoin in your area and network with the community
Join a Bitcoin/Blockchain related project
If youre looking to become a technical expert, then definitely look at the open source code and become a contributor to it.
If youre looking to be a non-technical expert, become a writer or blogger on Bitcoin and Blockchain related topics.
Attend large annual Bitcoin and Blockchain conferences.
Repeat steps 3 through 6 for at least two years, and then you will be credible enough to be a Bitcoin and Blockchain expert.
Once an expert, you could do the following:
Start your own Bitcoin or Blockchain related startup.
Start a consulting or software company on the Blockchain.
Write a book about Bitcoin.