It is never too late to invest in Bitcoin, but I will not advise you to use the money you like to use in the near future to invest in Bitcoin because nobody can predict the movement of the Bitcoin price in a few months before halving or even after halving. People are just hoping that what always happens after any halving in a pass will still happen, which is a bull run, but still, nobody can actually say when the bull run will start. That means there is no assurance of what will happen to the Bitcoin price in the future, but people are just predicting using the history of what has happened in the past. So if you want to invest in Bitcoin, use an amount you can afford to lose, and I think that will make you hold it for a long time.
The halving, the bull runs, and the speculation are all parts of a world that is always changing. People feel positive, think about the past, and make predictions. That being said, making forecasts is not easy. They're based on weak facts from the past, and the future isn't written down yet. What's the main point? If you can't lose something, don't risk it. That's smart for life in general, not just Bitcoin. Investing should be planned, not just a random roll of the dice.