http://sparrowa7io5pz6ud3ehqzosvepbxbxt2zphmkjsylp2zgxooko23pqd.onion/docs/best-practices.html
Generally, the disk space requirement is the biggest hurdle, but be aware that you can run Bitcoin Core in pruned mode - see the guide for details. Running your own node is a big step forward.
Not only are you keeping your transactions private, but you are validating them yourself.
And, you are contributing to the health and decentralization of the Bitcoin network.