Money, Anxiety, and Depression

I"ve been having a tough time the last few weeks. Me and my spouse have been runninginto some money issues. I keep being consumed with worry and anxiety. My mind keeps playing out this scenario in my head where we will be evicted and have to live on the street. Neither one of us have any family, so I don't know what we would do if we did get evicted. I hate the feeling of having to scrimp every penny and worry about this. All the anxiety has really made me start questioning myself, my life.. and has gotten me deeper and deeper into a depression. I'm tired of this constant struggle with money. I'm not suicidal, but sometimes I feel life is just too stressful for me to handle. We only need about $300 extra dollars to be able to be comfortable, for now. I have an online business that I've been working on for about a year. I have a new course I'm going to be releasing soon, but I'm having trouble having enough faith in myself that it will even do well. I've also applied for some part-time jobs, but again.. i'm at the mercy of the companies, if they will hire me... I just feel life has gotten so dark and pointless all of a sudden. I just want to be happy and not worry constantly about money. I've even felt like I've wasted my life. I should be so much further ahead than I am now. I'm just tired of being unhappy. I thought my 30's would be a happier decade than my 20's, but it's looking like I'm not where further ahead now than I was 10 years ago. 
I wanted to mention too that my Spiritual Beliefs have been my bedrock for the past few years. But during these "Money Worries"... i go straight to Fight or Flight mode, and I lose all faith in my spiritual beliefs and myself. Another issue I'm struggling with.