Keep your thought process and think positive.

If you catch yourself thinking that things aren't going to work out, then think again. Remember that most things work out better than you fear - so imagine that your fears are ungrounded and that success is ahead. Rather than thinking of the problems and getting desperate, imagine the best outcome and then work out what you need to do to make that happen. Follow your "inner guidance system." If the thoughts you are thinking are not giving you a good feeling, then think about something else that will make you feel good in that moment. Monitor your thoughts consistently throughout the day. Sometimes this may not be as easy as you think if you are stuck in a "negative" train of thought and your brain chemicals are getting fired up and forming an "anxiety or anger" pathway. Anxiety, fear and anger patterns can be interrupted by focusing on doing a math problem, counting backwards, counting in odd numbers, doing a sudoku puzzle, etc. - this will dissipate the rush of chemicals that are making you feel bad. Immediately then go back to picturing scenes/remembering things/imagining, planning stuff that makes you feel good.