From your language I assume you are just starting out with security, and it’s common to arm up right away and be very cautious. Remember that social engineering is by far the most exploited and successful method, and even if bots are attacking your home network, they’re automated and will move on. Simply don’t run services at home that are public or exploitable, and if you do use tools like fail2ban. You can self host a vpn or proxy on a cloud instance if you really want to maintain your privacy, but then quantum computers exist now and they can decrypt everything you do on the internet in moments.