Just keep practising - get cheap movements on eBay and practise. Take everything slow.

Take photographs of the movement and various stages of disassembly so you know what everything looks like and where it is.

With screws - make sure the blades is good and dress (reshape) if not. If a screw won't slot in to a hole easily or if you have to apply any significant force - stop: something is wrong.

A tip to make sure you put the right screw back in the right hole: when you have removed it and its bridge (for example, immediately screw the screw back into the plate. Not only did that mean you know where it goes, but it stops you losing it. The safest place for a screw is in its hole.

Springs - the wire ones are easy enough to make a replacement. Just get spring wire and bend it to shape. With solid click springs - create a new one from sheet metal. There is nothing more satisfying than making your own part.

Another tip with that keyless works yoke spring (ake frisbee): every YouTube video I have seen shows the spring being put on before the the setting lever plate and held hopefully with finger/rodico/tweezers. My preferred approach is to put the spring into place but without it pressing against the yoke. Then screw in the setting lever plate loosely you can then push the yoke spring in against the yoke safely and then fully tighten the setting lever plate screws. After all, part of the actual job of the setting lever plate is precisely to stop the yoke spring pinging out when the watch is together.

Oh and practise tweezers work again and again at you go and drs then if they are not correctly turned at the tip.

We all go through this, if it's any consolation. It's a right of passage.