Tips for dealing with depression and anxiety

Hi everyone. I currently am experiencing a bad episode of anxiety and depression the last few days. My bf is up for job opportunities and it’s been making me feel like I haven’t done anything with my life. I’m extremely happy and proud of him but I want my life to,I’ve in that direction as well. I’ve been having trouble being myself with him because I get scared that now he’ll leave or won’t have any time for me because what if I can’t fit in his world anymore, we’ve talked about it and he reassures me but I just overthink all the time. It’s been really draining and I don’t wan5 to be a rain cloud all the time. What are ways you guys deal with being more in control of your emotions? I can’t do therapy because I can’t afford it rn. I just want to stop ruining my relationship because of my inner conflicts and insecurities.