I have disassembled the phone but I mixed up the screws,

I already saw that video, but I can't differentiate the two types of screws that exist, since they are divided into red and blue and if I have understood correctly, I cannot make a mistake in placing a colored screw where it is not.

I can drill some component.

I wouldn't drill anything I would just use the process of elimination. Screws are only going to fit where they go. If the screw sticks up or seems to short for the threads try putting it somewhere else. Or better yet find matching-sized screws and compare them to how many each of the daughter boards might need.

I will try to do that, I will take screenshots of the process and upload them in case someone needs them in the future.

I would also like someone more experienced to upload a guide with the disassembly process of the "OPPO reno 7 5g" model and some specifications such as what glue to use on each part of the device.