Nobody's life is entirely free of pain and sorrow. Isn't it a question of learning to live with them rather than to avoid them?
If you have had deep conversations with people you will discover that nobody is without problem in life. Even if at present all things seems to be going smoothly, you will most likely encounter life challenges as time proceeds and these problems will cause you pain. There is no man that has lived and died without experiencing a form of pain. So if this pain is inevitable it means we should always look for means of getting over it. Different people have different ways of dealing with pain, some have the ability to suppress, others find it difficult to get over pain while some others get over pain easily with time.
Pain can come in different forms, it can be from loosing a loved one to the cold hands of death, running into loss in a business, suffering from different types of abuse and the list goes on till infinity. The intensity of this pain depends on the degree of resistance to the present moment, and this in turn depends on how strongly you are identified with your mind.
First step to dealing with pain is acceptance. To get over pain you have to accept that there is nothing you can do to change a past event, whatever you felt could be done that you did not do does not matter anymore. You should begin to think of a way forward as that is the only alternative. The more you are able to accept the now, the more you are free from pain. If the situation causing you pain is still happening, to defeat that pain you have to accept it and believe that things will be better. You don't have to pretend as if nothing is happening, and I don't think consoling yourself with the fact that there are people experiencing difficulties far greater than yours will be a long term solution because you will easily forget about that fact. You have to be conscious of your pain, allow yourself to feel it before you will be able to move on.
I once had a conversation with a friend who was always telling me about the pain he is going through in life and in the conversation I told him about some issues I was having and he was marveled by what I was revealing to him. I just had to let him know that everyone has a reason to grieve but what we shouldn't do is allow our life to be controlled by grieve and pain.
Realize today that the present moment is all you have, nothing else is guaranteed. Live your life as happily as you can while you still breathe. worrying about problems and dwelling in pain does not solve it.