Use Wokwi to simulate your code before transferring it to Thonny. It's also very important to troubleshoot as you go as well, test the code for each individual component before putting them all together, and use the print() to make sure the program actually outputs something.

The MicroPython libraries neopixel.py,  ws2812.py, and ssd1306.py need to be installed in order to make your program functional. When saving your code to your chip make sure to name it main.py, this will make it run automatically when connected to an external power source instead of the computer.