Excellent and simple advice @jlcrypto! You might add that it's good to have a predetermined plan for using trusted exchanges a trader/investor may need in the event their preferred exchange has a problem or doesn't list a coin of interest. Preemptively setup accounts before the day comes. For example it could take time to get verified on Coinbase. A proven exchange where a person can move from crypto to cash if needed in an emergency. Personal experience: I was following a coin and had made a decision to purchase. During the time it took to find and research exchanges that listed the coin it moved 300%. At that point I decided not to purchase but still setup an account with one of the exchanges that listed it. The researching effort wasn't a complete waste of time but I missed the trade.