Hopeless most of the time

Hello everyone

 Reaching out and wondering if anyone else is unable to see a positive future.

 I've had s mastectomy, chemo and will start radiotherapy soon.

It all seems never ending and gloomy.

 I've been chatting with a cancer psychologist and have been journaling and practicing CBT but ultimately I feel hopeless.

 Feel like my life changed forever upon receiving diagnosis and that really I have no future. 
Constantly scared of recurrence and spread, and can't get this out  of my head.

I apologise in advance for the gloomy nature of my post and am happy to delete if need be as I don't want to upset anyone. Just really really struggling.

 If you have read this, I thank you xx