Just don't do that. Tamagotchi are frustrating sometimes but hey thats the goal. Enjoy your tama and take your time. It's a simulation so follow the rules. Tamagotchi IS fun IS you play the game. It's a virtual animal. So let him gros and live is lire... Sometimes i am disapointed too, bit then i think it's ok, in life you can't always have what you want when you want. And that's thé charm of Tamagotchi.
There is no built-in feature on a tamagotchi On, or any tamagotchi of that matter, to make your tama grow faster. Sometimes I wish the same thing myself, but to no avail!
Some vpets do have that capability of "hyperspeed" where it grows at a super fast rate, but the only way you can achieve that on a tama is by debugging certain tamagotchi connections, which can be risky anyways and have potentially permanent side effects if you mess it up.