It's also possible that even with the halving, that there's no bull run and that we have reached the ATH for a while.
I think it's better to buy Bitcoin because you believe its fundamentals are good and you think it makes up for sound money.
Anything else -- especially with money you can't afford to lose -- is too risky.
Halving gives no assurance though in the previous halving, you can see the pump with the price and that is something to look forward in the next halving.
Fundamentally Bitcoin is good, no question about that and this is also why many choose to play long with Bitcoin and that's a good strategy that I will choose as well.
If you can't afford to invest yet that's fine, just save some money and wait for a cheaper price, the bear market is still here and that's a good opportunity to buy.