The first thing you need to do is figure out a way to calm yourself down. Work out. Go for a hike. If you're at work, go on a stroll outside the building for a second. Once you're in control of yourself, you'll need to reach out to someone. It could be a friend, loved one, if you know a therapist, or even just your regular doctor. Let someone else know what you're dealing with and lean on them for support in your tough times. You're not alone and isolating yourself can make things worse. You'll also need to accept the fact that you aren't perfect. You need to be able to deal with your faults without tormenting yourself for anything you are feeling inadequate about. And always keep in mind things will get better with time. We all have good seasons and bad seasons, they are inevitable. There will is a better future for you, all you gotta do is keep pushing. P.S. Also do nice things for people. Do charity, volunteer if you can. Helping other people can benefit your mental health greatly. You don't have to be in the best point in your life to help others.