If you are actually 'HI', you'll probably need more than your usual correction dose as the insulin won't work as well. You know we can't advise on dosages, but personally I tend to aim for, say, 6, knowing I won't get that low if I'm really high, and then after 4-5 hrs I take another small correction if needed. That helps avoid lows.
However, I'm sensitive to insulin, and what works for me, might not for you.
Basically, to avoid lows, don't overcorrect and be patient and don't stack insulin doses.
I think it's the evening for you? In that case, be even more cautious and set an alarm or alarms to test during the night.