I decide to spend right now (by donating, buying domain names, etc.) because I know I'll get it back relatively soon. The numbers in my account don't help me in

I decide to spend right now (by donating, buying domain names, etc.) because I know I'll get it back relatively soon. The numbers in my account don't help me in any way; they don't make my life better. Why should I not spend? Oh, and I don't care about profitability directly - I care about living a happy life. P.S. The deposit interest rates are around 5.5% actually.