If your third coffee is leaving you wired by mid-afternoon, try swapping one...

https://foxtrot-wiki.win/index.php/How_do_you_drink_yerba_mate_at_home_if_you_don%E2%80%99t_have_a_gourd%3F

If your third coffee is leaving you wired by mid-afternoon, try swapping one cup for rooibos or a gently whisked matcha