I will be honest I lost money gambling and trading. Buy and hold longterm is the only way. Else you are just throwing your money away.
You are right. Gambling and trading are good way to grow your bitcoin fast. However, they also can make your money to disappear in a blink of an eye. If you want to grow Bitcoin is a safer way, I think holding altcoin and Bitcoin are very worth to try. According to Coindesk and experts, Bitcoin price will increase to $2100 in the 2017.