Search Settings for a Solution
If there's a feature you're unhappy with or a problem you're trying to fix, then the Settings app is a good place to start problem solving. But there are a lot of different iPhone settings to sift through, which is why Apple added a Search bar in the Settings app.
To search for an answer, open Settings, swipe down, and a search bar will appear. Type in the keyword related to the issue you're having and tap on the result that looks right. If you don't find what you're looking for, go back to the Settings home and it will automatically bring your Search options back up. Stop Control Center from Popping Up Unwanted
Control Center is great because it allows you to quickly do all kinds of useful things like turn Wi-Fi, Airplane Mode, and Do Not Disturb on or off, lock your screen orientation, control playback, adjust volume levels, open your phone's calculator, and use your iPhone as a flashlight. What's not so great is swiping up from the bottom of the screen while using an app (especially when that app is a game) and accidentally bringing up Control Center.
To prevent Control Center from opening while you are using apps go to Settings > Control Center and toggle Access Within Apps off.
If you dislike receiving text messages on your Mac, then simply disable them on your computer By opening the Messages app on your Mac. Click Messages in the top bar and select Preferences. The Accounts window will pop up; tap your Apple ID on the left column. Uncheck Enable this account. To disable this feature on your iPhone without turning off iMessages, open Settings and select Messages. Scroll down and click Text Message Forwarding. Turn off any devices you don't want sending and receiving iMessages from your iPhone. This is in addition to changing iMessage preferences on your Mac. Turn Off Pesky App Notifications
If you don't want constant notifications from Facebook or a game like Candy Crush, you can adjust the settings for your app notifications by going to Settings and then scrolling down to the list of all the apps on your phone. Once here, tap on the app that you want to modify. Tap Notifications. From here, you can edit all of the permissions the app has allowed. For instance, you can choose to revoke all notifications by selecting Notifications and toggling off Allow Notifications, determine if and when the app tracks your location, and decide whether or not an app may use your cellular data.