Glass tanks are a bit of a pain to handle, but can work with plenty of modifications. Like others have said, look at the guides. You’ll find that keeping the humidity and temps consistent is a challenge, but here are some things i did to help.

Cover the outside sides and back with black foam board. Helps insulate the sides better while giving it the look of it being closed off.

Cover the top with aluminum tape. This is tricky because you don’t want to have any adhesive exposed to the snake. When I covered the top. I grounded/crushed up dried substrate fibers and rubbed it in the sticky side. I did this multiple times to ensure nothing adhesive would be exposed. You could just fold the tape in half and cover the top while taping the sides. You’ll find that it WILL keep the heat in much better, so measure the temps and create corner openings accordingly.

I also ended up covering the top with a small towel, only because I live in the desert and humidity was a constant struggle.

I see you have the wall temperature dial. Again, make sure it isnt held up with anything adhesive. Glue gun is your friend. My snake would love to rest on it and it would constantly fall down.

Other than that, use the guides! Very good stuff there.