You're fine, I think you just made a typo when you referred to 11/28. Just wanted to be sure we were all on the same page.
And yes, custom kernel ups the awesome level to eleven (ha ha, some will get that and some won't). Don't want to overload you too much, but I will throw as much at you today as you want to handle. Personally, might as well get customized to the max, but also don't want anything to get borked because of over-eagerness. At the very least, a custom kernel will help with battery life, this phone is notorious for not lasting too long on a single charge. Before I switched to my ZeroLemon 7000 mAH (yes, more than three times as much capacity as the 2100 mAH stock battery!!) I was able to tweak about 36 hours out of a single charge using a custom kernel.