General Anxiety & Unsure of How to Deal

Hi everyone! I'm a 23 year old female and have been dealing with anxiety for most of my life which I can remember. My parents divorced when I was 6 and my father re-married when I was 11 so I know that my anxiety roots can be found somewhere there. My anxiety has gotten to the point where I have lost jobs and in the past also have lost relationships. As far as work is considered some days I simply just don't feel like going to work at all and would rather just do nothing. I find myself over worrying and over obsessing about little things that otherwise would not torment others. I find myself repeating things in my head, sometimes phrases almost trying to reassure myself that if I think these thoughts or say these phrases over and over in my head that nothing bad will happen and sometimes I feel that if I don't repeat these phrases in my head something bad will happen. I find myself avoiding daily tasks such as doing laundry and cleaning my car in fear that if I do do these things something bad will occur. I have been in a relationship for almost the past year and so far this has been my longest lasting relationship to date. I feel that many of our fights or problems we have had have come from my need to constantly feel as if I have to call him and see what he is doing. Even if I'm working or pre occupied I will still feel the need to call him and see what he is doing. I feel as if I am always constantly worrying about everything and it is deeply affecting me. I don't know what to do anymore, I just hate feeling like this all the time. I have tried medication but most have just made me gain weight which in turn makes things worse.