Yoga Nidra is a beneficial practice that can inform the whole of your life from your meditation, creativity, memory, sleep, ability to manifest and spiritual transformation. It is a full and complete practice on it's own but also incredibly supportive for whatever spiritual practice you are undertaking and your life in general.
Find a yoga teacher training that is going to teach you to deeply understand yourself and how to create a personal practice that will empower you to live to your fullest potential. Knowing yourself is the first step to being able to teach others.
I have been leading yoga teacher trainings and immersions for advanced yoga study for over 10 years and there are always questions that come up from dedicated students and potential teachers when they are ready to take the plunge into a yoga teacher training.