I'm depressed on mainly 2 things. First, my job. This is my first full time job after graduating college and its been 11 months since I started. Lately I feel like I am not doing a good job and feel useless. My coworker and my ONLY co worker is leaving next spring and I have to learn everything he can do which is impossible because he has 40 years more experience than me. And being fired is not a choice. I have to be financially stable or else I won't be able to marry my current girlfriend and we are planning to get married in less than 2 years. And then that would cause us to break up and I will hit rock bottom and go through despair. I'm already starting to plan for the worst case scenario, in case this happens.
Second, my anxiety and IBS stomach problems. I had a really bad IBS accident half a year ago and ever since I am always worried that I will do it again. My anxiety is a big contributor to my stomach problems too. Because of this, I ruined my recent thanksgiving trip with my girlfriend because I didn't want to stay out too long and far because I was constantly worried I will poop in my pants. I also get random episodes of anxiety attacks mainly in restaurants and I get severely lightheaded and nauseous and eventually throw up.
How can I find a solution for this?