I don't know how old your cat is but we got ours at about 6 months old. Eventually she discovered my modeling table and would jump up from time to time to explore. When I shouted NO to her she would jump down in a hurry. That took a little time but not too long. She's only ever damaged one model under construction. We've had her now for 11 years and she knows that the modeling table is off limits. She's still allowed on the computer table and hangs out there with me most every day.
My best advice to you is:
1. Be consistent with you cat when you see them doing wrong.
2. Never use physical violence against them. Cats don't forget and will hold it against you.
3. Let them be cats. They are very inquisitive and will always poke their noses into places that they shouldn't be. They're also programmed to kill and will practice their stalking and hunting techniques whenever they can and on whatever they can.
4. And if you can't deal with #3, you shouldn't have a cat.
Good luck and if you do end up giving the cat away, please give it to a non-kill shelter.
Happy Thanksgiving everyone!