It absolutely does get better. My side effects lasted for weeks. My sleep was bad, my appetite was gone, I had horrible anxiety. I was certain the Zoloft was going nothing but bad things to my body, but Ian told me to stick it out and I did. I'm so glad I listened to him because it was like, one day, a switch went off and the side effects were gone and I felt so much better!
Now I only get mild side effects when I up my dose. My sleep gets bad for a few days but then returns to normal.
You have a lot on your plate right now so it is understandable that your anxiety is high. Just give the Zoloft more time on the therapeutic dose. And don't be afraid to go up to 75 mg if 50 mg isn't working for you. I didn't feel too much better until I went up to 75 mg.