I only have a home icon in the upper right No settings gear?

You are using Basic mail,

Yahoo Mail has 2 versions.

1. Classic Mail (basic) (heading shows sign out and home in the far top right) -

This is a very basic version for slow internet connections and older computers and operating systems.

You can switch to Classic Mail from Full Featured Mail as follows.

Go to the gear menu and select "more settings".

Click on "Switch to Classic Mail". Basic is now called classic.

2. Full Featured Mail (heading shows your name, dots, and home in the far top right) -

You can switch to Full Featured Mail from Classic Mail with the link at the top right.

You can also switch by going to options and then mail accounts and select it there.

The home icon is always at the upper left. The gear is at the upper right.

Yahoo webpages and images load slowly or don't respond: https://help.yahoo.com/kb/sln20357.html

Maybe you're signed out. Go to yahoo.com

Blame Yahoo staff