Depression - Teen Support Group
Teen depression is marked by persistent sadness, discouragement, loss of self-worth, and loss of interest in usual activities. Depression can be a temporary response to many situations and stresses. Teens may be more susceptible to depression due to the normal maturation process, the stress associated with it, and conflicts with parents as they become more independent.
I dont believe its your personality that is like that though, because if it is, then i guess it must be mine too, but a part of me doesn't want to believe that because i use to be a really happy person before i got really sad and low self esteemed. I hope you find your happiness and things get easier