Investing in BTC is a good idea however, this is not the time of investing in BTC because the price of bitcoin in the market was so high that's why as I advise try to invest in other altcoins and wait to reduce the value of bitcoin in the market.
It's never too late now to buy btcs. If you think that the price is too high and are having thoughs about it, you're making a decision that you may regret once the price of btc shoots up way higher. The price dipped today so that would make a lot of opportunities for people to take advantage of. Btc is still young at this stage so go for it