Look, I don't mean... I'm not talking about the fact that, because you made that wish, no one else except you remembered what happened 'the first time'-- I'm guessing you had to keep it to yourself as part of the rules or something. I'm talking about how you got or you're getting a second chance to save Sakura from the seal again. That's not something you have to see through on your own, even if you think you're solely responsible for it because you failed before.
You're not always gonna have a second chance. So it doesn't make sense to try and save someone on your own when if only you'd let people help you, things might actually be different. For the better.