Tinkerbell - your hair looks like the type that you can:
1) Wash it and leave it alone - it looks cool
2) Wash it scrunch it - it looks wavy and cool
3) Wash it and GHD it - it looks sleek and cool
Unlike mine - whatever I do it it it just looks straight

, which has its advantages and disadvantages:
Advantages: NYE in raining Rome - I was the only one of my mates who didn't look like a drowned rat.
Disadvantages: Flatmate put it in rollers for an awards do the other week, I slept in them, went to work and by 4pm they had all fallen out - had to spend an hour tonging it

blooming straight Chinese hair!!!
Anyway... as others have said have a few layers cut in - your hair looks quite thick so thin it out a bit if you wish - will make it more manageable
It is a lovely colour as it is, go for a few browns if you are really splashing out
BB x