Hi beny,
welcome to the arduino-forum.
You are working on a informatic project. And what is needed most in an informatic project is information.
The process to "reset on factory settings" is not as easy as with a consumer-device. It is not done with a 10 seconds long pressing of the reset-button.
There are mutliple ways to get your microcontroller running again. All ways require additional information.
Here is a step by step screenshot tutorial how to post code in an easy to read and easy to copy way
additionally you should post links to the manuals delivered from elegoo.
Encouring tap on your shoulder: head up! with the support of the forum we will get it up and running. This is just a lack of information and knowledge how to do it.
First step post the informations as described above.
best regards Stefan