Don't lose hope. Hope is what makes humans special.
I applied last cycle and even though I didn't even get an invite for a II I didn't lose hope. God has a plan for each of us and not always do we understand it, but one thing is for sure, stay positive and don't give up. I know that they give interviews all the way up til April and possibly past April.
I think updates are not necessarily bad, it shows genuine interest. I myself am planning on getting another letter of recommendation and sending that in. It shows you're still working towards your goal and touching people's hearts as opposed to just waiting.