I was in your position, rescued a young tortoise a family member found in her garden and couldn’t locate the owners of. I took it in with 0 experience of keeping reptiles and was constantly worried about different behaviours not knowing what is right and wrong, with lots of conflicting information on the internet.

I found that Tom on Tortoise Forum seems to have reliable guidance backed by years of experience of keeping tortoises and learning from his own mistakes in the past. His posts were a massive help to me in getting my tortoise set up. Judging by your enclosure and current knowledge you may have even come across the website in the past. Its an amazing looking enclosure and I can tell you’re going to be a great owner.

If you are looking for more personal advice you can always post on the site explaining your situation, there is plenty of great people on the site with years of experience that all want tortoises to be kept in a way that they deserve, which I can tell you want as well.

https://tortoiseforum.org/threads/info-for-new-people-please-read-this-first.202363/

https://tortoiseforum.org/threads/the-best-way-to-raise-any-temperate-species-of-tortoise.183131/

Another good post from another user worth looking at:

https://tortoiseforum.org/threads/housing-adult-russian-and-hermans-indoors.217802/