Home page disappeared after indexing

Hey, i have a problem.

I was trying to rank higher on a keyword, after some time my home page was getting ranked really high, page 1 mostly. But yesterday i changed my homepage abit added some text and indexed it again. Also made some changes to speed up my website went from 20 on mobile to 90. Today i checked again on the keyword i am ranking at. But my home page just disappeared from whole google also when i type site:domain.com. Should i redo all my changes or wait? what could this problem be