Hello! Everyday I do exercises from the 30 day singer beginner program to find my vibrato, but it is just very short and I feel like it doesn't come naturally. Any tips for developing my vibrato? Or do I just keep on doing the exercises?

Hi, Jimmy! As your technique improves over all, your vibrato will become more stable and feel more natural. Here's an hourlong lesson vibrato for beginners you might enjoy: https://www.youtube.com/watch?v=QEBtXJNiR_c