1. You're not aware that you can't do it properly
2. You're aware that you can't do it properly
3. You still think you can't do it properly, while you're actually able to do it properly
4. You know you're able to do it properly
It's actually:
3. You can do it, but you have to think about it to do it properly
4. You can do it properly without thinking about it.
SD