crypto is volatile so here is no safe way to invest in bitcoin.everyone knows that investing in bitcoin is worthy but if you meant about investing bitcoin in online paying sites i will say you will lose all your bitcoin.
Investing in Bitcoin is not the same or don't work as gambling does.
In investing in cryptocurrencies people might we are risking our money on Bitcoin it is true but it is not on the extent that we will call it a gamble. We can analyze the price changes and predict what might happen, we can invest in the right time. Saying that I can confirm that there is a safe way to invest in Bitcoin and other cryptocurrencies. The last line, most of the time, it is true.