Before using any wallet app is better to start reading guides. For Electrum are plenty of them by arman the parman, very well explained. https://armantheparman.com/electrum/

Youe lack of understanding (because you are not reading first) between bitcoin onchain and LN will cost you more and more.

Resources TO READ:

• https://darthcoin.substack.com/p/lightning-network-is-awesome
• https://darthcoin.substack.com/p/getting-started-ln
• https://darthcoin.substack.com/p/the-lightning-network-and-the-airport
• https://darthcoin.substack.com/p/private-lightning-nodes
• https://darthcoin.substack.com/p/managing-lightning-node-liquidity
• https://armantheparman.com