Achieved all my dreams but still not feeling happy or contempt

Hi guys, I am a 26 yo software engineer from tier 2 city, I do work from home, I earn near about 85k gross per month and in my part time I also teach others which gets me near about 25k per month, I come from a very humble upbringing, never had much money for anything, currently I am the sole bread earner in my family so I take care of everything, I have a younger brother to whom I teach and take care of, I also have a loving and pretty girlfriend who I love very much and so does. Everything that I had dreamt of in my younger days I have achieved but still I don't feel happy for some reason, I don't have anything to complain about and I know how blessed I am and how many people dream of having what I have. But still I don't see money as I used to see it before, I don't have any desire to earn more and I don't like spending it not because I am very frugal but I dont get the desire to buy a experience bike, car, house, gadgets, I am a god loving person and find solace in my faith Not sure why but I dont get any motivation to do anything, I don't feel happy or sad, not sure what's wrong with me, sometimes I even struggle to get out of bed or to take a bath or brush my teeth, Am I losing my sanity or what I am not sure