I know that my internet provider block the port 80 and i am using a router (with a firewall) so i forward the the port :8080 to :8080
foward port :8080 to :8080? If you meant 80 to 8080, then that isn't going to work if you ISP blocks 80. Since port 80 is blocked there will never be anything coming in on it to foward, as it's blocked by the ISP long before it ever gets to you.
And are you trying to connect to your IP from behind the router? That's probably not going to work either. That would mean the packet would go out to the router (who holds a lease on the external IP) where it's most likely NAT'ed, then tries to come back in using the same IP. Anyway, try connecting to the IP from some other PC outside your network.