Challenges that go “unresolved” can make us feel very alone, and those feelings would be naturally more pronounced after investing time and effort to ask for help with, what seems like, no response.
I remember when I went to the kotel the first time, all my classmates from seminary were looking at me awaiting some awestruck response to the place (kedusha) where we were at. I felt nothing (like if you were, lehavdil, staring at a brick wall and people expected your jaw to drop) and was ashamed I felt nothing. I later came to understand that a large part of that experience is actually having a connection to H’sh-em, which I had, as yet, to build. Part of my connection and feeling was built on the frequency that I visited the kotel, and I think it’s the same with davening. It won’t feel meaningful talking to “someone” who is like a stranger, but that’s ok. All relationships are awkward in the beginning. Give yourself time, and forgive yourself for feeling mad and abandoned. If all your tefilla consists of telling H’sh-em that you’re mad at Him for not being there for you in the way you feel you need and to please help you build your bitachon to accept what comes your way, that is a really meaningful tefilla. Just by talking to H’sh-em you are acknowledging that He is the Borei Olam and the source of where to turn for help. It’s like building a muscle; the more you use it (talking to H’sh-em) the stronger it gets. I think there are some sources that say that, for a woman, simply saying a bakosha is sufficient.