I have got own VPN running on OpenVPN. I want to browse internet anonymously via this VPN.
These applications automatically transfers everything through VPN. What I have to install or configure to make something like that?
Based on what you said you "want to do" you should not be using your own vpn. Doing that would keep people from intercepting your non-SSL connections from a unsafe location (like a open Wifi hotspot) but it would not make you "anonymous", you would just appear to be "you" but connecting from home instead of the wifi hotspot (basically you trade anonymity for security).
What you should use is something like tor, this will give you anonymity but you loose security. What I mean by "you loose security" is any non-SSL connection will be viewable to whoever is running the Tor Exit-Node (just like the wifi hotspot owner could), however now you have no idea of who is running the "hotspot" you are connecting from.
So to summerize:
On Steganos VPN or CyberGhostVPN:
Those two are VPN Providers, you connect to them (over a secure link that your ISP can't see in to, they know you are connecting to the VPN but they don't know what you are doing with the VPN) and your traffic appears to be coming out of a IP the VPN Prover owns instead of the IP your ISP owns. Software like OpenVPN lets you do what they do, if you are outside of your house you connect to your OpenVPN server and now it appears that you are connecting from inside your house. Your ISP will be able to see what you are doing over all non SSL connections.
If you do not want your ISP seeing what you are doing you need use a VPN server that is located outside of your house. Tor offers that, so do the two paid VPN providers you listed.