Not to offend anyone, but I've known devout Chiristians, and devout believers of every major religion, who were quite a bit more depressed than I am (Besides, mine seems to be rooted in biology).
I've studied the major religions. I spent almost 4 years (and 4 churches) on Chiristianity.
It maybe presumptuous to believe that we make our own meaning in our lives. But it is presumption I've come to believe after a lot of thought and study.
Anyone who has beliefs about meaning in life, is being presumptuous.