Invest an amount that you are prepared to lose. Don't put everything in a single basket. Diversified funds is the best way for investment. You can keep some of your Bitcoin as the safest way however it will take time before its value grows. I forgot, we people should invest in a trusted investment vehicles to avoid pyramid scams or any kind of scams. Investors should also measure their risk appetite so that an individual will know what kind of investment he or she fits in.