Riding a bike won't heal emotional scars. It's fun (if you let it be fun) but it isn't magic. Healing takes time. Emotional healing often requires something transformative, like initiation. And some scars never heal.
To avoid dehydration, bonking and hyponatremia, drink water and consume sugar and salts. Find a balance of those that works for you.
Riding with other people can help, too.