"Minus the sin, you're basically the same you from the pre-mortal existence, almost exactly. You have the same strengths and you have the same weaknesses.

You're basically the same you that's been developing for an indeterminately long time before you were ever mortal. You've existed for how long and you've only been on earth for what, less than 100 years? Why would you be any different?! How much can you really change in less than 100 years out of potentially hundreds, thousands, millions, trillions, eternity, what mortal knows?? How different are you really?"

This isn't church doctrine, but it's what I believe to be a revelation, so I would strongly advise praying about it and finding out for yourself.