I'm sorry for your diagnosis and situation. You will get through this.
There is a Young Womens group that I would suggest you join.
Some of those ladies will have more in common with you.
I was 61 on diagnosis, with no one dependant on me, but good family and friend support.
I consider myself quite lucky.
Like Afraser, I came through Chemo quite well. With no major side effects and no nausea.
I had the minor side effects that I would consider manageable.
I also did not lose my hair, as I used the Cold Cap (some thinning). Cold cap adds time spent at Chemo.
Wishing you all the best. Take up any offers for help. You can do it.