Everyone messes something up or even does something "bad" sometimes, and usually it doesn't make them a bad person.
Imo, people that are truly bad don't care that what they do is considered bad, they might even like what they do. You being worried about this stuff sounds like you're not a bad person. Just forgetful and tired/lazy, or something like that. And the things you mentioned aren't really that bad, it's not like you're actually stealing and seriously abusing your cat.. It's still pretty normal stuff