Hi I admire you for positive outlook I understand your concern about stress and anxiety. Anxiety can lead to many psychological disturbances. It can be due to daily stress, social issues, psychological mildness, or may be biological. Sometimes it depends upon our nature and our capacity to handle stress. You have to do lifestyle modification to handle stress. Regular exercise and meditations. Read about progressive muscle relaxation therapy on internet and do it regularly. Take proper sleep and diet. Do stress free work and activities , give times to pleasurable activities. This kind of condition can be treated with mild dose of benzodiazapine and mild dose of SSRI,in SSRI mild dose of escitalopram and paroxetine like drug is very useful But before taking this medicines you have to consult psychiatrist and evaluate your self. Get well soon. Thank you.