Please keep your posts in English so that we can understand your comments here 😉
Regarding battery optimization you can try the following steps:
Go to system settings -> battery -> powermaster -> auto-start manager and prevent all the apps to auto start that you don't need a notification from.
Also you can try this:
Go to system settings -> advanced -> Mobile Manager -> Memory cleaner -> Turn on Super Clean mode -> enter app list and uncheck any app that you must get notifications from -> go back -> open recent apps overview and press clear all.
And I could also recommend restart your device more often. It solves more issues than you would think.
And lastly if you haven't done it already would be to enable to schedule saving power to mode "ultra durable" for when you go to sleep.
I hope this improves your battery levels 🙂