One thing that I have learned so far is that life doesn't stop just because you are suffering. Life will stop for you, but it will move on for other people. It doesn't matter whether your child has died today, your employer expects you to go back to work after a week. It doesn't matter whether you are depressed and dead inside, your kid needs to eat and the landlord wants money. There is never time to process suffering. Right now as we speak, many people are dying of hunger and diseases but since it's not us, it's not really our problem. We can sympathise with them but we don't feel their pain because it is not us.
If you have not experienced this, wait until you hit rock bottom. You'll realize time doesn't stop to give you time to heal before moving on. You might suffer tonight, but your suffering won't change the fact that tomorrow is Saturday and things need to be done. You might be depressed to the point of wanting to stay in bed all day, but you have bills to pay. Time doesn't care about your problems. It will always move.
The best solution according to me is to belong somewhere. Belong to a church group, belong to a friends' group. Belong somewhere. It makes life easier when you have a support system.
Belong.