New home button gasket order

Currently on week 3 of my screen replacement. Not going well.

I ripped the home button cable, ordered a replacement from iFixit. I threw the old one out not realizing I was suppose to salvage the gasket, spacer, etc. No mention of it on iFixit so I found a gasket kit elsewhere, but I can’t seem to find instructions, or figure out, which parts are suppose to adhere to which.

Do I adhere the spacer to the screen, drop in the button, and adhere the gasket to the button and screen, all over the spacer?

I had followed the iFixit instructions literally, and tried to glue my new button to the screen. Didn’t make sense to me, and clearly did not work.

Thank you.