I Just bought some Loreal Hair color remover stuff. And my hair was colored black. And I am trying to go back to my natural blonde color. And it went orange. I need it blonde today. I have already stripped it once today. Can I do it again today? Or will it ruin my hair?

You shouldn't expect hair color remover to restore the natural color. That never happens! Now that you've removed the black, you have to bleach out the rest of the color and tone it. You can do it today. No guarantees about runining your hair. That depends on how many processes your hair has been subjected to, but waiting won't improve those odds. Hair doesn't "get better" or "heal" over time (no blood supply to the hair shaft),