new style? long short? suggestions?

Hi,
I'm new here, and well i want a new haircut, i've been stuck with medium length hair since i was a kid, so when i went off to college, i kinda grew it out. thing is, its become kind of messy (?) or unrefined? at any rate, i want a new hairstyle. i was thinking of something short? maybe like faux hawk or something, or perhaps something a bit longer like korean or japanese hairstyles (the ones that're kinda fluffy and ruffled?)
the thing is, i'm not too sure how they'll look on me, either the short or the longer ones. plus i dont know how to use hair products to style my hair korean or japanese.

i'm also open to other suggestions for styles.

attached is a picture of my current hair, its kinda unkempt.

thanks in advance!