If coffee is leaving you wired by mid-afternoon, try swapping one cup for...
https://wiki-wire.win/index.php/What_should_I_drink_with_breakfast_so_coffee_doesn%E2%80%99t_hit_me_so_hard%3F
If coffee is leaving you wired by mid-afternoon, try swapping one cup for rooibos or a gently spiced golden milk