Try to segregate more. It sounds like you do PHP for a day job and tried to have a side project in PHP as well. This isn't good, as you point out, frustrations

Try to segregate more. It sounds like you do PHP for a day job and tried to have a side project in PHP as well. This isn't good, as you point out, frustrations from one area bleeds over into the other area. Work in a different language, clothes, environment, industry, anything you can do to help trick your mind into not letting frustration bleed from one to the other. Think about trying to do something not programming, brew a craft beer, restore old cars, make bird houses, whatever.