Initially I was struggling for guided Meditation/Meditation music because first problem was which one to choose and second YouTube had problem of ads during music play. Then I started using PMC app. Here I can choose no. of minutes I want to meditate and whether I need guided or music meditation. Also it maintains my record of days and no. Of minutes I am meditating.
If you are facing similar issue you can try this. Also there are so many other features which you can explore.