It is difficult to live in a world filled with pains and troubles. Therefore, if you can find a way to stay out of these problems, you have to. Take note that there are things that you cannot change and are beyond your control. If you try to force yourself to deal with these things, you will just end up being hurt. Therefore, you really have to stay away from them as long as you can.
If you want, you can deal with these pains and go out as a better person. In the end, you will have more problems if you try to feel the pain and live in it for a very long time. Try to avoid pain, but if it comes, you have to be prepared to face it in the most decent way that you can. It will still be for your own good after all.