Object permanence means that a child can:

think about something that is not present
cannot consider another person's point of view
think only about herself and her needs
cannot combine and integrate schemes

Which should you do if you decide that the stresses and problems in your life are too much to manage? forget about the stress and hope it will eventually go away. find someone to talk to. try taking a depressant like heroin to you relax. take a hallucinogen, like pcp, to take your mind off things.