If you're looking for more advanced control of key combinations and mouse input, you might try something like VoiceAttack...
http://voiceattack.com
It's also on sale at Steam right now for $6, and you can find user reviews for it there...
https://store.steampowered.com/app/583010/VoiceAttack/
There's also an open source freeware alternative called GAVPI, though it's probably not as fully-featured, and doesn't look like it's been updated in at least a year, whereas Voice Attack appears to see updates fairly regularly...
https://baykovr.github.io/gavpi.html