Welcome! You should be able to apply off of the freedom.tm homepage. Then you just wait to receive your invitation.
A few words of advice: first, try to stay active on the forums. Be sociable, don't be afraid to stroke up a conversation, and don't spam everyone with your channel. If they want to check your channel out, they will. Secondly, be kind! Everyone likes a good conversationalist. People stray away from pessimism. Just have fun with it and be yourself.