A safer way to do it may be investing in alternatives that not easily fall in price, such as gold.
However, as far as I know, bitcoin can be more favorable than gold sometimes, in terms of potential for earnings.
Investing now is not safe because in this world too many scammer who created investment website that never run long and they're going to scam people who uses their website the best thing to do is just learn more about trading and you will be fine and your earning too because in trading you have a potenial to earn more.