Welcome to the forum. I am sorry you are feeling scared but I'm sure you will find a lot of support on here from fellow members.
You might find it helpful to look through the threads in the "Going through treatment" section of the forum particularly "surgery" and the chemotherapy monthly threads. I have attached the link to the November Newbies who all started their treatment in November. If you post on this thread I'm sure they will quickly welcome you.
Also you could call our Helpline to talk things over. They can offer you lots of practical information and emotional support. The opening hours are 9-5 on weekdays and 10-2 on Saturdays. The number is 0808 800 6000.
Very best wishes