Account logs and statistic

For first, i'd want to see some account statistic, for example how many messages you sent daily, or how many reactions you added etc.

Also, list of devices that you logged in is pretty good for account security. And ability to logout on some of devices, for example you forget your phone in school - you just can click "Deauthorize this device" to prevent someone doing nasty things in your account

And, for example, buttons to undo some action, for example changing avatar or leaving guild, for example you lost invite for server or previous avatar, but want to come back your previous avatar etc

Here's some concept I made few days ago