I heard a beautiful shiur from Rav Arush about how all problems come from complaining feeling depressed, feeling down, crying for nothing. How Bnei Yisrael complaining and crying in the Midbar is the tikun we have to fix. How one has to thank Hashem for everything He does for us. Then he spoke how people had problems (all kinds) and tried to just focus on thanking Hashem for 2 weeks and saw such help from above. Problems were solved, and wonderful things were happening.
As we are working on ourselves on saying THANK YOU to Hashem.
Here is a another thing I heard from the shiur. When one thanks Hashem all the windows in Hashem's palace are opened and Hashem pours down on that person yeshuos, Hashem tells the melachaim send that person more and more,without the person even having to ask for it. But when a person cries for nothing is misyaesh, feeling down, complaining, not happy, all the windows in Hashem's palace are closed. Not one tfilah is able to enter & that is what brings all the problems. Just keep thanking Hashem and all tfilos are able to enter.!!!!