I see that kind of issue all the time. In my opinion, purchase and manage your coins properly as long as you have the money. Don't always wait and talk about what if the price goes down after I purchased it, so be it, the price won't go up. It's going to finally go up. If you're here for how many years, you know the price will be affected by the upcoming halving. If half is coming, don't hesitate to invest. It's one of the safest time to buy before halving.
You got that right, question "should I buy bitcoin now" is the most frequent question of all times here. People asked that years ago, people still ask that question. Looks like some people wait 5 digits price to buy, because now the price is high, but we all know that the price can be higher, so why not wait a bit more and then buy it. Majority of people have horrible timing when it comes to buying or selling bitcoin, even thou there are good topics here about that, good buying and selling signals, some people will never learn.