Needing some hair advice.
I'm in the same boat! I've had my hair short, long, and everything in-between. I think the shorter style looks cute on you, or a longer style with some layers to break it up a bit. I think you could pull off a darker color, too!
I have thick wavy hair so I'm kind of limited on styles. Hormones have me sweating all the time so my now shoulder length hair is always up in a bun or clip, even for bed! I'm coming up on 3 months since my last cut and trying to figure out what to do. Oh and thanks to heredity, I have premature grey hairs so I'm in dire need of highlights, too. :-/
It seems like you have fine hair, so I think that lots of layers would work well for you in the heat.
Erica, first, I want to say that both hairstyles look good on you.
BUt, as a person who (recently) got her hair "chopped off".... Don't cut it!!!!! LOL!
I think your hair will look great with some highlights and a couple of layers, but still keeping the length. besides, with humid weather it's better to keep it long(ish), so you can tie it in a ponytail when you need to be comfortable, but still have the sexier option of long hair when you want to look good.
I'm the same way--I get so fed up with my hair and end up chopping it. I say, if you're not ready to commit to a cut, go with some highlights so you feel like you're getting a bit of a change. Your hair looks cute with the blonde! Then if down the road that's just not doing it for you, at least you'll know you're ready for a cut!