So sorry to see you here!
Stories such as yours make me so angry. Yes, there are MANY possible causes for urinary blood, but one of them is bladder cancer!! It is often difficult to find the cause, but that doesn't mean that doctors shouldn't try. It probably would not have made a difference, but one wonders what the result might have been had you been referred to a urologist when the bleeding first appeared. (My father had blood in his urine ONCE. Turned out to be kidney cancer...thank goodness the doctor sent him to a specialist right away.)
You will be in good hands at UCLA....a university medical center is the place to be. I assume from your description that you will be having a neobladder?
Here is a very good discussion of the main types of diversions currently used that you may want to read so that you can formulate questions for the surgeon:
my.clevelandclinic.org/health/treatments_and_procedures/hic_Urinary_Reconstruction_and_Diversion
Will you be having chemo prior to the surgery? After the surgery?
These are other questions you might want to ask.
Wishing you all the best
Sara Anne