The dreaded witching hour

My infant is almost 7 weeks old and I want to know if she will ever outgrow the witching hour (or two) in which she cries (sometimes just terribly so) before going to sleep? I keep hearing parents say it gets better at 8 weeks or sometimes three months. I really hope that's true! It's gut-wrenching to be her mom but just unable to find something to soothe her. I swaddle, swing, shush, side and pacify her but sometimes nothing works. What's your experience with this nightly crying spell? Can it and will it get better?

Edit: I have plenty of white noise going as well.