Hi Moozel, your stress, anxiety, worry are all normal.
The physical effects of this disease are slow, treatments may be curative or at least slow the progress of the disease.
The mental effects of the disease are much quicker they start the first day you have an abnormal psa result. I won't say the mental effects are as serious as the cancer itself, but they have the ability to ruin your life.
Surgery, radiotherapy, hormone treatment will all have some impact on the cancer, possibly kill it; worrying about it will not change the cancer one iota.
Make sure you have a positive mental attitude, you will never go a day without thinking of cancer (well I don't anyway) but make sure it is only at the back of your mind, not at the front. Sure some days you will have hospital appointments and tests and have to decide about treatment plans and you will have to put cancer at the top of your priorities, but every other day push cancer thoughts to the back and bring normal every day thoughts to the front. I'm not saying you suppress the cancer thoughts or go in denial, that's not good for mental health, just give them a low priority.