I lost a big sum of money because of bitcoin fall. What can I invest in to avoid risks like that? Or at least to bear lower risks?
You lost? have you sold the coins already? because if not then you are still not losing anything but just the value.
Keep the risk market is developing now , it almost breaking 40k now so in the soonest time it will come back to 50k so keep it mate and chill.
Right, if you did not sell it then no need to worry about losing your money. It is only the value that change, but you can still hold it until the value will return to the amount you wanted or going higher and higher. What matters is your trust and awareness in every changes of price.