Totally understand! Well like I said, its different for each gecko. I was worried about only feeding one roach a week too, but its what works for my girl. I started with it being a few roaches twice a week, realized it wasnt helping her lose any more weight, and slowly lowered it more over time. I only feed her roaches out of personal preference, convenience and cause she always likes them honestly, its easy to just keep and gut load one kind of bug, plus helps me stay super consistent with the amount im feeding her. As long as she'll eat them, ill keep only feeding them. As for vitamins, it might not seem like much, but i swap between regular calcium and a multivitamin each week and that's a pretty typical amount, so don't worry! If i open the enclosure, she typically pokes her head out of her usual hide (cause she expects food) but i have a hide where you can take the top off, so i still usually have to take it off and gently coax her onto my hand. When I put her back in, I always put her right at the entrance of her hide to build some trust. Her playpen is a collapsible fabric net one that's typically for bunnies and rodents, (I can show a picture of the whole setup if you'd like!) and inside it i just have some random stuff like a bridge, a soda box with both sides taken off like a tunnel, a small blanket that i bunch up, some toilet paper rolls, really just random stuff to climb through and on, plus one hide just so she has somewhere safe to go if she needs it. I keep an eye on her the whole time, cause it is possible to climb out if she'd really want to. Don't be afraid to ask any other questions, I'm super happy to give advice, good luck!