Whatever you do, don’t stop. 

Cry, be angry, get frustrated,  feel tired..

But DO NOT stop. 
Push through, trusting and believing that things are working out to and for your good.
Understand, though, that sometimes that means addition by subtraction. You have to trust that if you lose something or someone in the process, the loss is making room for what really belongs.
Push through. Have faith, and push through.