To turn off TalkBack, follow these steps:
- Navigate to Settings > Accessibility > TalkBack.
- Slide the TalkBack switch to the off position.
- In the Stop Talkback dialog, select OK.
I don't know what device you are using so the menus and options may vary a bit. For your predictive text, check under
:
Settings > Language & Input > [Select your keyboard] > Text Correction
Make sure any options you want are checked such as: "Auto Correction", "Show Correction Suggestions", "Personalized Suggestions", etc...