Self discovery can take anywhere from a couple months to who knows when! There have been cases out in the world where it's taken people the vast majority of their life to finally find themselves and say, "Why didn't I know before? Why did I wait so long?" But then again, there's been some cases where people find themselves in 6 months give or take.
This is when you've understood the importance of what you do and don't like around you, when you have looked at the INNER you and see that there's a person inside that you like and you want to allow that person to grow and experience the world..as is. Finding yourself also makes you react right away, take for example when a friend or acquaintance makes fun of you..and instead of taking offense to the remark, you simply say, "Hey, that's just who I am!" You make others aware that this is who you've found and this is who you are....kind of like a take it or leave it type of thing but in a good way.
Now, is there anything wrong with changing direction? Is there anything wrong with finding a new path that you were meant to follow? The answer is...it's up to you to decide.
Were all meant to do good and be positive in our lives, although sometimes along the way we seem to have trouble and do the exact opposite, that's why it's good to always question yourself and look beyond instead of your day to day actions...look at those too, but make sure you're on the right path before going on any further.
When YOU know who YOU are...LIVE IT!