Gee, gulp, it really has a lovely start. I love the color and it looks like a sweater. I have only made two sweaters and my experiences were a bit like yours. The first one, I patched together and it is definitely wearable, and I do, sometimes... The second one is huge, despite the guage being dead on. I put that one away, waiting for summer to pass. I intend to get her out again and fix her somehow.
I chalked them both up to learning experience, but I know how discouraging it is to be so excited with anticipation and work so hard to get less than awesome results. I keep wondering how all the knitters on this forum get wearable projects to actually be, well, wearable.
You might want to finish her and see if some of the problems straighten themselves out when completed. As far as the bottom hem goes, you could just button the bottom couple of buttons--I think that is a cute look.
I say wear it with pride that you made a sweater!!! That is an accomplishment to celebrate in any case. As for me, I'm sticking to projects that don't have to fit for a while.