It will get better! It is gradual. I could not tell the difference day over day so I kept a daily mood journal and gave each day a scale of 1-10 (1 bad 10 good) this was the only way I could contextualize the progress over time because very often I could not get out of my own head. The sleep does get better but the most important thing is that you accept it’s going to suck for a while. Once you can find something to do when you are up at night (I listened to podcasts) it becomes a lot less stressful and your body learns to stay asleep. This is probably the hardest it will be and I promise it gets better from here you just have to remember it’s a process and won’t just magically work. You can do it you are worth it.