Hi ...your problem appear to be of depression
....need evaluation for it's cause...is it
Secondary to personality disorder
or any persistent stressor or endogenous..because management is different...as far as treatment is concerned medication are good and you should not worry about dependence....most of medication are not dependence producing and all medication if used as advices and regular follow up done , can be tapered and you can be off treatment after some time..you just need to tell your concerns to treating psychiatrist
and follow their advice religiously .