I started with creating the circuit in KiCad. I noticed that there was not the right ESP32 for me so i looked online and found this:
https://github.com/davidkleymann/doit-esp32-devkit-kicad

I build everything in KiCad just to see that the libraries are probably outdated (or i just did something wrong but i dont believe that)
After about 20 of trouble shooting I got it working but I noticed that KiCad is not the best place for what im trying to do so I gave up. I searched for a new programm and found https://wokwi.com.

It worked well. Though, they did not have splicing connectors / wago connectors so i made it with a Breadboard in this circuit instead. In the real version I will do it instead with splicing connectors.
Also the LED strip name for the negative power supply pin was VSS, i thought it should be GND and learned the difference then.