Actually, this is what's causing confusion. Are you implying, at what time interval should we consider past prices as a valid benchmark?
Indeed, a few weeks ago, the BTC price stood higher than it does now, hovering around the $30k range. However, six months back, BTC was valued at $23k. If we stick to last week's prices, sure, it seems cheap, but if we take into account the value six months ago, it appears rather steep. As of now, the Bitcoin price sits at $26k.
Opting for gradual purchases would be more beneficial than comparing to historical prices. Additionally, BTC is currently at a support juncture, and if that level gives way, chances are the market will turn bearish. There's no telling what might occur before the halving period; surprises could manifest at any given moment.
Simple is that you have to see your buying price because you cannot sell your coin in a value lower than buying price for example you bought bitcoin when the price was 18k$ so surely you will have maximum amount at this stage as even the market is decrease in price but it is higher if we compared it with your buying rate.
Selling of bitcoin is not a good option when situations are like this because this bear market is not permanent but actually it is temporary which will end very soon. But selling is better for those who always get terrified when market goes down so instead of going towards wrong and defeated way one should clarify about the rate in which he can get benefit.