I believe it's easier to work on the second chances if one comes here and doesn't do any bad things while in this world. Her case is more difficult for her due to actions she has done here in the past, which weren't in the best interests of others. And so hers would be more trying than your case. There's also those who come here from a point before they turned bad, when they were still good people, and they get second chances too.
Might be best to just focus on yourself and not letting other opinions influence it. It will be a hard road, that much is certain. But it's worth it in the end. It can be done if you work hard and don't give up. And who knows, you might even make a few good friends along the way.