I'm impressed to know that someone had the guts to "hodl" Bitcoin since 2013, even with the constant ups and downs in price. Not many people are capable of doing this. If you keep "hodling" without selling a single satoshi, then you'll be on a road towards becoming an multi-millionaire person. Those who get into Bitcoin now, will have to wait a little bit to become rich as market prices are still down.

Knowing that the pioneer cryptocurrency's supply is extremely limited, tells me that it'll keep crossing new All-time-highs over time. As long as you don't invest more than what you can't afford to lose, you'll have nothing to worry about. Cheers, mate!