Growing Up

One thing I've found, particularly within the last few years, is the difficulties of growing up. Particularly the pressures of moving from the teen who is mostly dependent on parental's and then leaving, still kinda (heaviliy) dependent on parents to the point where issues weren't issues til they made it an issue.

I want to be self-sufficient, I want to be able to support myself, hold my own and only have to rely on others when it becomes crazy, especially when I only have myself but I also know my own limits. 

I've never truly spoken out about anything my entire life (as the one time I tried ended in an epic fail) so how in the world am I supposed to start now?