I woudn't advise the use of Bitcoin ATMs unless you are in an absolute emergency and you need to cash in or cash out right away. Be sure to make sure if you need to cash in that you go to a two way Bitcoin ATM that does both as most of them only sell bitcoin for cash. Hopefully this helps!
Prepapre your finance and available cash or money in bank account to use daily or in emergency.
With bitcoin, to keep it safely you must store it offline in your cold wallets, and you can store small amount of your bitcoin in hot wallets, bring it around to use in case you need to pay something that is available with bitcoin payment method.
Find merchants and others that accept Bitcoin.
https://bitcoin.org/en/resources#directories