That last question of yours at -5? That wasn't a year ago. It was last month. You can see it here.
Not even mods are privy to how the rate limiters work. Nor can we lift them; it's meant to slow down low quality posts, so users don't run headlong into the real blocker: the question ban. That ensures you only get to ask one question every six months. It's hard to get into. It's even harder to get out of.
Your second question was better received; maybe a little short on research, but the community didn't think it was a bad question. From my observations (entirely guessing; no privileged information whatsoever), users usually get two questions before the rate limiters hit. It looks like your first question hit enough of the negative indicators (downvoted, closed, deleted) that your second question would've had to have been something very positively received to avoid the rate limits.
So for now, all you can do is wait out the three days. Once you ask another question, try to make sure it's a good one, and the rate limiter shouldn't kick in again.