adjective

fickle and irresponsible.

you may be seen as too flighty and lightweight for real responsibility

fickle,erratic,changeable,inconstant,irresolute,mercurial,skittish,whimsical,capricious,volatile,unsteady,unstable,unbalanced,impulsive,irresponsible,flippant,giddy,silly,frivolous,light-minded,feather-brained,scatterbrained,reckless,wild,careless,thoughtless,heedless,carefree,insouciant,dippy,dopey,nutty,dappy,batty,dotty,scatty,ditzy