Try swapping your second coffee for matcha, rooibos or a gently spiced golden...
https://gunnerawsh736.cavandoragh.org/i-love-coffee-taste-but-caffeine-ruins-my-sleep-what-should-i-try-first
Try swapping your second coffee for matcha, rooibos or a gently spiced golden milk. A different afternoon drink can help you ease off caffeine later in the day, while still keeping a comforting pause in your routine