no problem.
No matter what you do, I really do recommend looking at some Park Tools videos. They are very well filmed, camera angles, closeups, lighting, and the friendly fellow explains things very well.
Worth it just to get in your head the workings of various bike parts, and to visualize dismantling etc

they are a great resource, so only you know if you have the interest to do it on your own, but seeing a professional do it beforehand will make it very clear of what is involved and the basic steps.

remember though, use your cell phone camera to photograph order of parts if you disassemble it, laying each one down on a clean paper towel or whatever and taking a photo is a great way not to screw up and mix things up, very easy to do, and we have all done it.