Sam2 – I always understodd it that one who is truly maamin in HKB”H and understands that everything comes from Him and any matzav you are in comes from him, one wouldn’t be sad (perhaps similar to the Ibn Ezra on jealousy).
You raise a valid point, that since there is bechira, and my own choices can lead me to certain situations “without HKB”H causing it” (Enter Yediya/Bechira).
Perhaps one can say that it is because He is in charge, and will provide you what you need, and whatever Matzav you see yourself in, whether He caused it or you caused it, He can get you out, and will do what He decides is best for you.
See Chovois Halvovois Shaar Bitachon.