Help! People can't join my server. (even after setting ports)

Hello!
Spend a lot of time on my server only to find out that people can’t actually join.
Followed tutorials on YT for TCP port 30120 and UDP port 30120. (incoming and outgoing).
Tried to log in to my router en did the same with ports there. Not sure if I did this right though. On a host checking website I see for TCP connection timed out and UDP open or filtered and Ping 0/4. My internet helpdesk didn’t really answer my question, they only said turn VPN settings off (datalimit and roaming?)
Can someone please please help me with this? I really want my friends and family to join my server.