Hi there,
my advice would be not to start a TGP as to begin with.
For newbies, imo it's not worth the time to start a new TGP and you probably wouldn't be making too much money of it anyways.
I would suggest building and submitting galleries and freesites for a few months to learn how to sell memberships to your traffic.
Once you're able to do that and built a nice traffic flow you might consider starting a TGP, but it might also be that once you reached that point you don't want to start a TGP anymore as you found out by then that starting a TGP as a newbie doesn't bring as much money as other things do
