I would feel guilty if I advised you to buy Bitcoins right now especially if you are planning to hold them. It would look like so sort of FOMO (fear of missing out) and this can be catastrophic at times especially if you ended up buying shortly before the price starts dumping
So the best piece of advice I can give is that wait for an opportunity and buy the dip and make much more gains with less risk. Opportunity is always there with Bitcoin so don't let FOMO set you up into a trap.
Even pros or veterans into this market would really be having a hard time on trying to find out on whats the possible bottom price this is why when you do tend to go for long
term then entering on the current price wont be an issue but i do agree on the suggestion that it would be more worth if you do enter on possible low price rather than on this
current new Ath levels which it seems that there would be some serious correction soon to happen.