Missedout
*Retroladywriting*, give yourself a pat on the back. You've managed some of the most difficult things. It's no mean feat to set up your email account, adding your password and passing the security tests.
I volunteer for IT Support at our local library and have helped many to set up their phones. I have the following advice to offer:-
As you recognise the need for new apps, ensure that you download them from the Google Playstore (it will already be installed on your Android phone). Do not trust any apps that you download via web pages. Ensure that you are using strong passwords and don't reuse any. If you have set up finger-print/facial recognition, you can let your phone remember your passwords for you (although you may need to keep an accurate record if you are accessing the same accounts on your laptop). You may be offered the use of Passkeys too - your phone is your password - no-one else can pick up your phone and use it.
You can download a QR code reader from the Playstore too (I have QR Droid on mine). As soon as you open the installed QR reader app, you will see the camera is looking for the QR code. Just hold the lens so it can read the code and the link will pop on to your phone. You just have to click the link to be taken to a web site. As someone above has pointed out - be wary.
One of the other questions I'm most frequently asked is about WiFi and mobile data. With your new mobile phone, you can sign into your home WiFi network and use that freely (add your WiFi password to your phone using the 'Settings'- gearwheels icon). When you are away from the house, your WiFi will not be available and you will need to turn on Mobile Data (which you pay for as part of your contract). You can make and receive phone calls without mobile data and exchange short text messages but you won't be able to read or write emails etc. Mobile Data is sent over your network providers phone network and is much more secure than using public WiFi networks.
Enjoy your new phone.
Thank you MissedOut - that's all really useful particularly the bit about QR codes, which I haven't done yet. I've downloaded some, hopefully useful, apps, including a Steps counter, WhatApp (which apparently 'everybody' uses now, changed my out of date contract to a cheaper and better one, and taken and shared photos. Slowly finding my way around the rest ...