How do I stop feeling guilty, and wishing I could go back in time and change this?

u have only one problem -lost job after some time u have another job remember other thing ur social status remember all people r not rich if u make ur partner happy that u can do a great job there should be no depression forget ur old friend's & relatives u should concern only happy life u & ur partner u don't know what problems other have i give u one example on my nabour rich man but have no kids he is not happy but not depressed because he find another way to funding poor children for scooling u make one target & always remember to work hard to achieve ur target then the others will jealous only