I just found out bitcoin and I chose to use online wallet but there is a fear feel that makes me often check did my bitcoin is still safe. I have read some articles there saying for me to use 2fa as additional security. is that true?
It's definitely worth adding to any account. Better have more security than less.
Also invest in an hardwallet (Ledger Nano S) if you start trading with lots of coins and high value $$$s.