I personally have my verbosity preset set to low, I have cover proximity sensor to stop it from talking turned off, and under the developer settings in the advanced section I have reduced window announcement delay turned on. Also, definitely get used to the one finger gestures that are usable with talkback active as they help navigating around your device be a little bit quicker, I would absolutely recommend turning the three button navigation back on if your phone doesn't do that by default, and I would recommend upping the speech rate of the screen reader so it doesn't take 9 hours to read one sentence.

My favorite tip I got was that you can change the voice. I have mine set in UK English. It makes it so much more barrable than the US English version. The settings on how to get there are probably different per phone make. But I'm sure if you have TalkBack enabled the menu for it is the same. Swipe down without letting up then right to access it. I'm no expert. But if you have any questions feel free to ask. If I have the knowledge I'll help if I can.

Here's a youtube channel that has tips and walkthroughs and they have a website: https://www.youtube.com/c/BlindAndroidUsers