Buying bitcoins little by little and withdrawing them to a personal wallet is the most effective way. I've been doing it for a few months and now I think I'm pretty successful even though I only have a few bitcoins at the moment. But I hesitate to buy again when the price of bitcoin becomes too expensive. Do you have an opinion? Unfortunately I just found out about this forum, if I knew about it a long time ago maybe I would have more bitcoins. Even though I've known about bitcoin for a long time, I was hesitant to start buying bitcoin for a long time before finally deciding to start buying it on binance
I have to first congratulate you for finding this forum, where all the information you need to be a successful Bitcoin investor is available. Bitcoin have not become too expensive, you can still buy now and hold because the future of Bitcoin looks very bright. When Bitcoin was $100, some people also said it was too expensive and refused to buy, same thing happened when it got to $500, $1,000 and even $10,000. When the price gets to $100,000, some people will still think it is too expensive but that will not stop Bitcoin from continuing to rise because it will continue to rise over the years.
Bitcoin is designed in a way that the price will be rising as it continue to experience halving, an even that reduces the quantity of Bitcoin that miners get for confirming transactions.
Instead of looking at the price, just buying continuously as your finance can carry using the DCA method that have been explained in this thread. Don't worry about the price and keep buying fractions of Bitcoin and build it over several years and you will see how well it will grow.