Bitcoin wallet is like a bank account, you can get Bitcoin, store them and then send them to others. There are two main types of wallets: a wallet software that you can install on your PC or mobile device. You have complete control over your Bitcoin, but sometimes it's difficult to install and maintain.
I am using Electrum to keep my Bitcoin because my friends told me its the best Bitcoin wallet until now. And you, which wallet are you using?
Well some of my Bitcoin are on the exchanges like Bittrex, Binance and Kucoin where I can do my short trade and mid term trade and the rest of my Bitcoin which I'm really holding for long time are on my hard wallet which is Nano Ledger S. I suggest that you should buy hard wallet like Nano Ledger S and Trezor because they are more secured that cold wallet like electrum.