Very certain the asteroids chances have dipped below .5% at this point with more observation. But a normal falcon nine can send an impactor big enough to deflect it. And it offers us enough launch windows to send multiple attempts.
Larger asteroid or comet scares can approach us in the future though. On the lower end, basic survival gear, or financial planning for an economic crisis is a must. As funny as it be for an asteroid to hit a large Indian city. It could cause a similar financial crisis to 911.
But even if an asteroid isn't a dinosaur killer. It can have similar effects to a limited nuclear conflict. Meaning three years of famine and winter. Stock up on supplies that can last you that long. Also if you live inland, temperatures will reach arctic levels. So have plenty of kerosene, and make sure you are well below the frost line in your cellar/bunker. Also if poor or not a homeowner, live near the ocean. It will save you from the temperature extremes. But storms will be far worse due to the destruction of the ozone layer caused by dust and forest fires. Also stock up on enough sunscreen to last you fifteen years until the ozone layer rebuilds itself lol.
Humanity survived a similar catastrophe during the Younger-Dryas. It destroyed civilization, but humanity survived.