Calm down! Quiet yourself down. Quiet your mind, the fears, worries and the uncertainties by trusting in Him, like a child weaned by his mother.
Like a weaned child, if your soul is in unrest because of change and uncertainty, make peace with change. Quiet and rest yourself in the certainty that He is always good.
Godliness with contentment is great gain. Contentment brings about peace and quietness. It brings about rest from the strive and the stress of wanting more and more.
Psa 131:2 Surely I have behaved and quieted myself, as a child that is weaned of his mother: my soul is even as a weaned child.