Check out phantom wallet. It's a self custody wallet, meaning you are in charge of your own money. When you first setup the wallet, it will give you 12 words. Think of these 12 words as your master password. Don't save it online, don't email it to yourself, don't save it to a password manager. Write it down in private on a piece of paper and store it somewhere safe.
You can use phantom mobile ios and android or on your desktop with a browser extension. Let me know if you have any questions specifically about phantom.