A powerful form of healing is chanting. Many of us do this unconsciously when we hum. Mothers hum to their babies and young children. We hum to ourselves in times of stress or of happiness.
A common spiritual chant is OM (AUM). This sound – the OM sound – was sung in the original pitch of 136 Hz, so that the power of Om, as it resonates with the Earth's own frequency (https://www.mindbodygreen.com/0-2776/5-Facts-You-May-Not-Know-About-OM.html)
There are many chants that one can repeat for calming, healing, nurturing, or for praying. Try several – you can listen to them on YouTube – and then stick with one, repeating it three times a day for 21 days. You will see a difference.