Any tips for managing a mental illness?

Hi Flutherist,
So I suffer quite badly from hypochondria.
I can’t afford to see someone, and I’m not on the ‘free’ list as I’m not in the mental health system. I’ve had this anxiety since I was little.
When I was 5 I remember thinking I wouldn’t make it to 8, I wouldn’t let anyone feel my heart beat as I was scared it would stop. I only have anxiety when it comes to me. I suffered really severe panic attacks for about 10 years but now just suffer from health anxiety plus weird body and brain sensations. Everything is cancer, I“m sure I have something wrong with me and Dr’s just haven’t found it.
I’m 40 now. I’ve had this too long and yes I’ve seen psychologists in the pass but they haven’t helped me. The only time it went away was when I was pregnant and I now have a gorgeous 3 year old. I’m a great Mum but my healthy anxiety stops me from going out, I’m a single Mum so I’d like to meet someone. I have my own business but rarely find the motivation to do it properly. At the moment I have severe acid reflux, everything I eat gives me stomach pain and I’ve started taking Losec again, I cancelled my gastropscopy because for months I was fine and the risk didn’t seem worth it, though now I think I have cancer, I swallowed a fish bone so that’s consuming and I have a cut that is taking longer than it should to heal, plus I think I have MS or some form of debilitating slow disease. All of this is so draining. You’d be surprised through if you knew me as I’m so optimistic externally and I’m a good friend to myself, my inner talk isn’t mean, but I’m just over it. I’m not depressed but I’m probably not far from being depressed. Any thoughts or help? Anything that has worked for you??