Are you asking if someone who hasn’t presented with the same past “weaknesses” could be a match for you?
There are plenty of great girls around who would gladly take a boy who is very sincere about his path, as long as he shows his sincerity through time and effort. If you’ve decided to change your ways only one month ago, that may not be enough time to instill confidence in someone. Also, besides your verbal commitment to living more carefully, what efforts have you made to ensure your commitment? Do you have a rav or a role model? these are things you need to come with to show you’re a “different” person.