The best way to maintain privacy is by running your own full node and also using different address for different transactions. If you run your own node and then point electrum server towards it then your privacy might be protected and you won’t depend on other nodes for information and also you can use Tor or VPN to hide your IP too if you’re connected to other nodes
It is worth mentioning also that running your own node or personal electrum server should be connected with Tor for privacy reason. Connecting it with IP is not private enough as your Internet network provider can still see some information about you and that you are using Bitcoin Core.
what's the many benefits of running your own full node because that seems to be an interesting thing to do for me, I really don't have much to do when it comes to passing the time and I don't even have a lot of hobbies so this could be a good one for me, I just wish that this doesn't cost a lot of money to do though.
Privacy is the benefit. You will not have to depend on other nodes/servers. If your wallet is synchronizing with the blockchain using the nodes/servers, the nodes/servers will know your wallet addresses and also your IP address. If your IP address can be known, your real identity can be known through your Internet service provider.
Mind you running a bitcoin node plus this personal electrum server requires you to have enough storage space.
It is worth knowing that downloading the full blockchain requires over 500 gigabyte of blockchain download. Also that you will need like 20 gigabyte of data to keep downloading the lastest blocks monthly.
If you are beginner and want to maintain full privacy, then it’s better to use newly generated addresses for each transaction that you do in the blockchain. Electrum wallet has the facility of generating new and unlimited addresses. Hence each time you send or receive the coins, use new addresses. People can easily track the activity done of a particular Bitcoin address, hence in order to become completely anonymous use different address.
This is part of it. But there are times you will also need coin control for this while sending coins and not only while receiving. Also to have full privacy, you will needs mixers or converting to monero at times. You can run Electrum with Tor for anonymity. But for privacy, you need to run your own node with Tor.