OpenVPN issue TLS server/client

Nobody that can help me out here? By browsing through different forums i got the feeling, that a lot of users are struggling with that.
Yes, there is a lot of documentation out there, but its either written from a professional point of view or the routing part is missing. How to setup a VPN client connection (OpenVPN or PPTP) is straight forward and well documented, but the trouble shooting when you have problems not.

Long story short, the reason why i bought a turris was for a better VPN experience and right now i still can’t use it. Hope that somebody can help me with the config.