You are correct that life is not always easy.  You are correct that some of your challenges are major.  This is part of life:  the ups and downs.  You cannot have one without the other in this earthly realm.  Yet, there is no need to focus only on the good or the bad.  Notice it all.  Feel it all, and in the midst of it all, find gratitude.  There is always something to be grateful for, and this will be your saving grace when the major challenges you face. 

You are so very loved.