It takes time to learn what works and what you are doing. There are people to learn from before you find your own style and expression. Start somewhere and keep learning, keep stretching and stay curious.
Check out these resources
Jessica Abel – “You’re Not Lucky, You’re Just Good”
You are not lucky, you’re just good – Out on the wire podcast episode
Alex Blumberg Manifesto
A manifesto from radio/podcast veteran Alex Blumberg
Jay Acunzo on interviewing
The Interview Magic of Stern, Gross, Simmons, Glass, & More: 9 of Their Best Questions