I also feel confused about it, but maybe for me the most important way to save it is to convert it into fiat and save it in a savings account at the bank.
Yes it is the best way to do to secure your bitcoin so that it wont be affected on the change in value every seconds. Beside from it you can also secure your bitcoin in different trusted wallet that can hold bitcoin. Be careful on the wallet that you are going to used because some wallet arr scammas like what all people are saying. Also make sure that you have of copies of your password or key password for the safetiness of your bitcoin there.
I did opposite from that, I decided to keep my money in bitcoins, not in my bank account, bitcoins will worth
more in the future and I can make some good profit on top of my invested money, in the bank I am on the same.
My choice is Electrum wallet. There is many others, the best I saw are Trezor and Ledger, nice wallets but
I still do not have so big amounts to pay for an extra protection. I made a research before I chose Electrum,
online wallets like Blockchain, Xapo and couple others are decent to keep there some little amounts, and to
use this wallets for daily use. If you wish to have a lot of bitcoins, pay for extra protection and buy some
good Ledger wallet.