Harry/Fenrir
What's going to happen is that you will get the wolfsbane free of charge. Professor Snape will be making it for you and Remus. By the way I would suggest that you talk to him. He's been a werewolf since he was a child so he can help you with the changes your body has been going through.
Then you will get a job like everyone else, and you will get the day after the full moon off so you can rest.
I can't account for everyone's personal beliefs, but we'll make sure that everyone can support this community and themselves, including werewolves.
Does that answer your questions? If not, we can discuss specifics, but don't worry, you will not be stuck with no wolfsbane and/or no job.