Use DCA strategy. It means instead to buy all at ones, you can be buyin in small amount every week. If the price of bitcoin fall between $30000 to $35000, buy the remaining at ones. If the price of bitcoin do not fall to such price and it is getting to halving, like a week or two weeks to halving, then buy the remaining at ones at the time.
The DCA can be a smart approach to investing in Bitcoin. By buying in small amounts regularly, you can potentially mitigate the impact of price fluctuations. And your plan to buy the remaining amount if the price falls between $30,000 to $35,000 or close to the halving is a thoughtful way to take advantage of potential opportunities. Just remember to stay informed about bitcoin trends and adjust your strategy accordingly.