General Anxiety disorder

Anyone else struggle with general anxiety? Every single day I constantly feel the heavy weight of anxiety in my chest and it’s really starting to take a toll on me. I want to be a mom so bad but worry that I’ll just constantly be anxious during my pregnancy. I start therapy early January but until then is there anything I can do in the meantime to calm myself down? I feel like my anxiety is just taking my mind over and driving me crazy.