Ok, I must have did the port forward correctly. After I found my IP over the internet (just search for what is my IP), I gave them that number 73.28.163.143:2302 and they were able to see it now.
Here is what I did in my router. Idk if this will help anyone looking for the same thing. Wish you luck! FYI, I had to restart my router.
https://ibb.co/eKmMcK