I would say: start singing and improvising just by yourself. In the car for instance, in a separate room in the house (where noone can hear you…), or in the forest. Just start singing with sounds. Without words, without thinking, without expectations, without preconceived ideas and explore your voice and possibilities without any judgement. Just enjoy singing, your voice, the vibration of the sound and explore. Make sounds or rhythms and maybe if a word comes to your mind, sing or say this word. Or shout if you feel like it! Singing is good for the soul, for the heart, for the lungs and for your whole body so I can really recommend it!