It is better to seek the advice of an investment expert before doing any major investment on Bitcoin or a few altcoin at the moment. In most cases when new ATH is hit the market becomes so unpredictable. Except the goal is on a long term basis then the risk is worth taking but anything otherwise I sincerely won't advise anyone now to rush into buying I can only suggest taking some profit so that if the market retraces they can buy more and if it makes further moves upward then they will have some profit to hold on to
Now that the market is in a bullish phase, investors should protect their capital and refrain from buying crypto. Don't risk it, don't make yourself unstable with a volatile market, be patient and give yourself a bearish time to accumulate Bitcoin.