Did I put my computer at risk from what I've done in the terminal?

Hello all. Recently I have been getting into CTF's which are kind of like a cybersecurity competition. I am using this website called picoCTF which is a practice platform hosted by Carnegie Mellon. On one practice scenario, we were supposed to run an ssh command into something called titan.picoctf.net. They also provided a web based terminal that I could run this command on. However, instead of doing that, I'm not sure why but I decided to run the ssh command on my actual computer's terminal. I was just wondering if I put my computer at risk by doing this and if my computer is safe. Thank you.