1 When under pressure, try not to be harshly critical of yourself but instead be loving and caring. Develop some positive and affirming statements to counter some of your major self-criticisms.
2 Compliment yourself when you do well and concentrate on your strengths rather than your weaknesses.
3 Pick some everyday situations and make a note of your positive and pessimistic attitudes towards them. If the pessimistic ones seem to be more heavily weighted think of some positive opposite, statements, and then practise them in other situations.
4 Stop seeing yourself as a victim of the system, or your company, or the people around you. You know you have the power to change this.