I want to port forward, cause maybe it 'll solve my LoL errors, but I really cant, I just stuck with writing the IP adress, everything I write is wrong

Could anyone help me? With teamviewer or smt?
I havent so much fg, but I can pay some for this
These ports must be forwarded for League of Legends to operate properly.
5000 - 5500 UDP - League of Legends Game Client
8393 - 8400 TCP - Patcher and Maestro
2099 TCP - PVP.Net
5223 TCP - PVP.Net
5222 TCP - PVP.Net
80 TCP - HTTP Connections
443 TCP - HTTPS Connections
8088 Spectator Mode