Just some random babble as you acclimate yourself with a different mobile platform
-- Sit down and just go through each item in your device's Settings menu. You'll learn a lot about the capabilities (and admittedly some limitations) of your device. Also note that there are often sub-menus too that may be contextual to the main menu. The oft-repeated differences between Android <?> iOS really show up in Settings.
-- Another revealing place to look into is your App menu. Take a look at each app currently on your device and don't forget to check each app's Settings/Options menu because there can be a lot of possibly useful options that may or may not be by default enabled but really stand out for your needs. Unfortunately the Settings/Options menu for different apps are often in different places -- could be the hamburger menu (three horizontal lines in the upper left), or an icon in the upper right or left, or tied to the Android menu button (bottom left corner) -- it's mostly up to the developer(s) of the app. There's more uniformity in the Apple-verse in this aspect but there's more flexibility and capability in Android's less regulated approach.
-- This is just my opinion but Google's Play Store is much easier to use when you're searching for various items compared to Apple's App Store. Anyway, you should get used to using the Play Store app as the default apps that come with Android aren't always the most robust -- the default email app is just an OK email client, as is the default texting app. Third-party apps in the Play Store however are usually much more configurable and expansive with better feature sets.
-- One aspect that really shines with iOS is the fully comprehensive backup/restore feature tied to iCloud or iTunes. Plus it's much, much easier to transfer your entire user account from one Apple device to another. Unfortunately there's no similar, overall solution for Android. Different manufacturers and carriers do provide some really good utilities/services to back up/restore your device but they're not universally compatible to any Android device. Apple can set something like this up as it has control over its OS, its hardware, and its support network, Android is more open and less regulated, allowing any number of different manufacturers to participate at multiple levels of oversight so a basic, universal backup/restore solution isn't as viable. Anyway, it's really, really, really important you set up a good backup solution for yourself. Don't put this off, backups are important.