I'm having a dilemma over my hair

. I hope it's ok to post on this thread?!
I'm going for my 3rd Fec on friday,I've got very fine hair and I've been using the cold cap up til now. Hair is getting a bit thin on top (although no bald patch as yet) and just don't know whether it's worth doing the cold cap again this time. I got my hair cut very short in prep for chemo and had my hubbie give it a trim again a few days ago. It's not looking that good at the mo' and I'm wearing a scarf or hat when I go out now.
I've decided to ignore the advice about only washing hair twice a week now. I might as well have the good of it while it's here but I'm having that do I, don't I shave it dilemma :0(
I am concerned about how long it'll take to grow back too once it's been shaved off.
Anyone got any advice what I should do?
I just don't know if it's going to get worst....it's now 38 days since I started chemo.
Fhi