Scared of port forwarding.

I am scared to port forward my Minecraft server with the port of 25565 will be breached. So here are my precautions and I need your opinion to tell me if I should improve something. I am running the server on Pelican which I heard uses docker containers I only have the Minecraft and cs2 ports open I have setup ubuntu to deny trafic anywhere on my network excluding my pc that I run commands with Now I am scared of a close to impossible event but possible where the attacker follows the following path and succeeds. Internet-Router-Docker container-Ubuntu- windows pc ( that I run ssh with) -phones/other PCs ( cause my pc that I run ssh with is still on trafic with the rest of the devices) - passwords and banking accounts. I know, I know you can't always be sure but please say something to comfort me or advise me on what to do.