hey musallwah, welcome.

Lightning wallets like muun or phoenix are ok for small amounts. They use the lightning network to move bitcoin quickly and rely on private servers to handle your money. For convenience, you can keep using them as your "hot wallet" but be aware that a lot of it is still experimental and shit can still happen.

Level 2 : The classic way to secure larger amounts is to create yourself an "onchain" bitcoin wallet and transfer the funds into it. Here are 3 apps where you can do it : Electrum(desktop), Samourai Wallet (mobile) or Green Wallet (mobile/desktop).

If you do that, you will have what is traditionally called a software wallet.

You can then further upgrade your security by getting yourself a hardware wallet.

Level 3 : If you still want to profit of the speed of the lighting network while being your own boss.. , you can look up into how to set-up your own bitcoin/lightning node. That is an excellent way to learn more and a cool way to help the network. Keywords : raspiblitz, umbrel, mynode.