How can I optimize my Android phone's battery life without sacrificing performance?

I totally feel you, I've been in the same situation with my old Android phone. So, one thing that really made a difference for me was adjusting the screen timeout and using a darker theme, which reduces the power consumption of the screen. You can also try turning off animations, it's a bit of a tweak but it does help, you can do this by enabling developer options and then turning off window and transition animations.

I'd also recommend taking a closer look at which apps are draining your battery the most, you can do this by going to your phone's settings and checking the battery usage. Sometimes it's an app that you don't even use that much, but it's running in the background and sucking up all your battery life. You can try uninstalling or restricting the background usage of those apps to see if it makes a difference. And, I know you've already tried disabling location services and turning off Bluetooth and Wi-Fi when not in use, but just to reiterate, these are really important ones to keep an eye on.

Another thing you could try is using an app like Greenify, it helps you identify which apps are consuming the most battery and allows you to hibernate them when they're not in use. I've found it to be really useful, and it's not too complicated to use. As for habits or behaviors to avoid, I'd say try to avoid overcharging your phone, it can actually reduce the battery's lifespan. Also, try to keep your phone's software up to date, sometimes updates can bring improvements to battery life.

I hope these tips help you out, and you're able to squeeze a bit more life out of your phone's battery. Remember, as your phone gets older, the battery's capacity will naturally decrease, but with a few tweaks and adjustments, you should be able to get a decent day's use out of it. Let me know if you have any other questions or if there's anything else I can help you with.