Read! (you can even read while eating pasta). It doesn't even have to be articles about communications -- any kind of journalism, fiction, non-fiction, blogs -- whatever interests you. The more you read, the more you'll understand the many ways to write and communicate, and it'll help you find your voice. I also suggest watching great speeches (not just TED talks, historical speeches as well). This will help you understand what makes a speaker compelling, and listen for nuances that will guide you in perhaps writing for someone else someday.