There is no sorrow, no regret and not even happiness in the present moment, that is being in the now. Emotions come from the past, and the future. We usually feel regret for the past and fear for the future.
Whether you like it or not, as long you are still breathing, the future will eventually come.
Whenever you feel happy, you look forward to the next moment of joy.
Whenever you feel sad, you look forward to the next moment that is no more pain.
Whenever you lost hope, you look forward to the next opportunity.
Whenever you feel lost, you look forward to wisdom and knowledge to lead you forward.
The only way is, to live in the moment, but to look forward with hope in the heart.