Short vs Long Hair

when i was a little kid, my hair was short. bob cut. when i got a little older, i got my hair longer and i became one of the girls in our batch with the longest hair. my hair went until above my waist. (:

then, in my first year in college, i cut my hair super duper short. as in, boyish kind of cut.

and now, i have no idea what to do with my hair! T__T i've been meaning to go to the salon but i always get stuck whenever i think about whether to cut it shorter or just have it trimmed for it to grow longer easier. help!

the then and now. i just can't make up my mind! shorter hair? longer hair? keeping it medium length? T__T