For every one billion particles of antimatter there were one billion and one particles of matter. And when the mutual annihilation was complete, one billionth remained - and that's our present universe.
I oppose any belief that contradicts experimental evidence as determined by the methods of science. All beliefs not in such contradiction may be considered as faith. Whether faith in a particular belief is beneficial or not is another matter.
Hope for the best, be prepared for the worse. Life is shocking, but you must never appear to be shocked. For no matter how bad it is it could be worse and no matter how good it is it could be better.