LIfe inthe ayipoyindhi anipistundhi, Ippudu em cheyyali?

I am 31, married at 24, have one daughter. So, I have bought a flat, land, car everything, stable job with lucrative (70LPA) salary. What should I do now? Just work like a donkey and pay the EMIs for the rest of my life? Not sure what's going on in life, but suddenly I feel so empty, feels like nothing to do in the life, overthinking about some past love story. Just replaying those events and thinking in my head, what if those events have happened like another way? etc...