I'm having the same thoughts when the market price drop in 31k$ from 34k$ trying to reinvest again after I sold my bitcoin in 27k$ which I pretty much make a good profit.
I was gonna reinvest at 31k$ but in just a small time the market price is already at 35k$, and then I was thinking if I'm gonna reinvest at 35k$ but maybe it just really risky for the short term investment.
We could still see a lot of opportunities for investment in other altcoins that is not that risky as investing in bitcoin today, but it might be worth taking the risk since you could always change your plan and go for a long term investment if the bitcoin stop pumping and dump after investing.
On the time we had able to buy in again then we must always consider or looking for price pullback specially if you do go for short term then that would be a good choice rather than risking
when it was still somewhat on peak price even though we cant really precisely tell if its on the top or not but our own guts and intuition do really mix up on that time.
Profitability will vary on someones decisions on how he gonna act on what he's currently seeing on point.If you do seem that the price is already on the peak
then better to hold and wait up for the right time to get in, it might not be precise or exact but at least what matter most is on to make money or in greens.