Do I need VPN?

You might.  VPNs can used to gain access to geo-restricted content such as movies or music that are not available in your home country.   They can also mask your traffic from your ISP so they cannot see what and where you are going on the Internet.  ISOs regulkarly monitor traffic and monitize it by selling it to advertisers.

 Be sure to use a reputable VPN provider such as ProtonVPN.  Stay away from "free" VPNs.  Most do not live up to the exaggerated claims of anonimity and privacy they advertise.

What is phishing?

 Phishing is usually done via e-mail.  It is a false claim about a product, prize, or service.  Many times threats are used to create a sense of urgency to get the person reciving e-mail to act.  Click this link to WIN!, You have 24 hours to respond, Law enfocement has been notified, your account has been locked, etc. are all statements to try to get you to act.  If you recieve an e-mail with a threat or a "too good to be true" type of promise, it is probably a phishing scam.  Delete the e-mail and verify by going DIRECTLY to source.   NEVER click links or download files from these suspicious emails if you are not sure of the source.

What is 2FA?

Two-factor authentication allows you to protect an account using a pair of authorization methods. Usually, this involves a password and some other form of authentication such as security questions, SMS, and emails.  Stronger authentication methods include authenticator apps (Aegis for exzample) that generate a code that is syncronized with a website or applications.  Hardware tokens such as Yubikeys provide some of the strongest 2FA available.

Can you truly be anonymous onine?

The short answer is no.   There are tools you can use and best practices to minimize your exposure to tracking and monitoring.   Everything form secure messengers and VPN to using a privacy focused browser like Brave or Firefox will minimize but not eliminate your ability to be tracked and your presence on the Internet.  True anonymity is virtually impossible and takes extreme measure up to and including just not using the Internet or a cell phone or ANY connected device.  It also means not driving a modern car and avoiding surveillance cameras at every turn.   That doesn't sound practical.  It also isn't a reasonable expectation for most people.