Welcome to the site I read this and I think of my daughter who is a little bit younger than you. Life can be so tough, treatment has improved over the last few years. Yes it is terrible to lose your hair. When mine started to fall out I was devastated, but once I had it all cut off I adjusted quickly with no hair. I found losing my hair was less of a issue than the chemo. I had a wig as I worked on and off during chemo but wore scarves alot. I used a skull cap on my head and brought cheap scarves and watched a video on the internet on how to tie them.
Chemo is tough but you will get there, visit often there is generally someone who can help. Sending you a hug xx