He said, "Bitcoin investment seems to be late, to be honest. I'm sad, too. I think 2018 was the last chance for ordinary people."
Too late I don't think so..afaik people can still invest as potential to go to $100K or $500K still exists, but if he referred to owning a whole bitcoin it could be the case as price as gone up for everyone of us to own atleast 1BTC.I'm so pathetic and depressed because I didn't know Bitcoin quickly. What should I do? 
You don't have to stretch yourself by buying a whole Bitcoin, slow but steady wins the race and you can invest in BTC the DCA way...