First project completely on my own!

I've made some IOT stuff here and there before but always copying tutorials on YouTube, but this is the first project I did it on my own, I don't know coding so I took help from ChatGPT and tweaked it myself, even learnt some bits of coding on the process. Here is a cash box/ register that keeps track of your expenses. The 3 buttons behind are for adding bills (I couldn't figure out a way to do automatically, yes I thought of weight sensors too), and the one at left is to check how many bills are in each compartment.