heck yeah!! patience is KEY! I know its not the easiest thing to wait out, im there myself. Hard to have a beautiful, ready to go tank..sitting there "empty".
Now that your nitrites dropped and you added ammonia, test again tomorrow morning(24 hours after addition). Hopefully, your ammonia reading will be zero or very close to it, and Im guessing your nitrites will continue to be high for a little while longer. Sounds like the bacteria are building, but not quite there.
once again, keep testing until the nitrites drop then add more ammonia. wash, rinse, repeat.
Im pretty much at the same point in my cycle. Ammonia gets used in about 24 hours, but nitrites dont drop below .5 for a couple days.
Soon, your tank will be ready to go!