For such a highly professional technology as building electrical design, you want to watch a video tutorial, which is great! Watching the video of building electrical design is only a superficial study. I suggest you find a job suitable for this position and accumulate while working.

Without years of experience in building electrical design, there is no way to work independently. Video tutorials can only teach you to use simple software commands, and the real technology still depends on your own summary.

The following is a screenshot of building electrical design. Do you think it's simple?