To be a successful radio DJ, it's more important to have a strong voice, good communication skills, and a personality that can connect with listeners. You should also be able to multitask and think quickly on your feet, as radio DJs often need to adapt to changing situations and keep the show moving.
If you're interested in a career as a radio DJ, there are a few things you can do to prepare. You can start by volunteering at your local radio station or college radio station. This will give you a chance to get experience on the air and learn the basics of radio broadcasting. You can also take classes in broadcasting, communications, or journalism to develop your skills.