Be realistic about time.
Creating a podcast can’t be done in 15 minutes. Prepping, researching, recording and editing can take a lot longer than you think.
Practice
Don’t try to get it right the first time. Do some short practice recordings to get a feel for pacing and editing.
Be prepared to edit
Don’t think you can do a one take podcast. Plan to edit heavily. If you go in knowing you don’t have to be perfect, you’ll be more relaxed during the recording. Remove pauses and “uhhs” and “umms” from your recording to make it cleaner. Don’t try and cut corners. Take your time and do it right.
Make sure you’re passionate about your topic.
Pick something you can talk about. This will make the podcast more interesting to the listener than if you’re trying to “just get it done”.
Go in with a plan.
Have an idea written down of what you want the podcast to be. Again, don’t try and wing it. Writing down ideas can take an hour to do but it could save you multiple hours on the editing side and it will make the podcast flow better.