As far as Bitcoin has not reached it ATH, the opportunities are still open for anyone to embrace, Bitcoin increase is still at it early stage despite the recent appreciation in price, it only a novice that will say that buying now doesn't make sense, last week the movement of bitcoin was between 50k-51k but now we can see that there is an upwards increase which we never know the next price, so it is better to buy now than to keep spectating, spectators are always discouraged because of their eagerness to always work with any available information which is bad, to me the best thing to do as an investor that's is ready is weighing options and doing the needful before regretting your actions.
When Bitcoin also reached the past ATH you can still buy Bitcoin, you shouldn't be investing in Bitcoin because you want to make profits from when Bitcoin reach the last highest price. Your investing in Bitcoin should be long term focus, already you should know that Bitcoin price increase after every halving and there are many more halving to come therefore the price of Bitcoin will keep increasing each year. You might miss to make profit this year if Bitcoin reach a new ATH but that shouldn't make you not to invest in Bitcoin and miss making profits from the other profits that'll be coming in the future. It's never too late to buy Bitcoin, those individual that bought Bitcoin at $50,000 have already made profits oif they were to sell at the current price of Bitcoin at $60,000