23, just diagnosed with HPV positive throat cancer

As title says, I'm 23 years old (male) and just been diagnosed with HPV positive throat cancer. I didn't get the HPV vaccine at school as only girls got it when I was there. I have smoked and used alcohol since I was 16 which probably didn't help but doctors say HPV was the cause. Treatment still being decided. 
 

Anyone been in similar boat? Many thanks.