I’m sure you might know python. If not it’s pretty easy to learn. I think python for finances is an excellent book and you could build your inflows and outflows

I’m sure you might know python. If not it’s pretty easy to learn. I think python for finances is an excellent book and you could build your inflows and outflows very easily. You could also project the future savings/expenses and their effects on your bank balances. Edit - it’s ‘Personal Finance with Python’ Max Humber