possible bad things

i have been saying that i will be calm and lead a stress free life now and then, sometimes i say i am the greatest person.

to counter this assertion and mellow down my belief of my calmness ability. i just like to remind myself that in terms of calmness it is

possible that i will experience sick, terrible feeling or panic attack that shakes and tremble my body uncontrollably. it could also develop into prolong fear and anxiety that consumes my life. depression, mental problems, disorder could arise. and so on.