Health anxiety stealing my life

Health anxiety is taking over my life I’ve poked and prodded myself for years and years worried about cancer, it’s my worse health anxiety symptom, I create lumps and cause inflammation, constantly checking saliva or mucus for blood so much I give myself a sore throat and cause bleeding then the cycle continues, I am being robbed of my life, i don’t think too far ahead because I think ill be dying of cancer, always asking family and colleagues, do you think I have rapid weight loss? Constantly weighing myself to check for it. I feel like I’m spiralling out of control, had a few months where I was good and didn’t think about it but it’s back full force. Where do I go from here, how do i stop analysing every breath and pain or sensation and every waking moment looking for cancer or other life threatening diseases?

I spoke to my doctor before who just gave me an online link to some therapy tools which I felt was completely useless and didn’t help me. I have a 6 month old baby and we are broke I have no money to get professional help or consistent support. I just feel so lost, it has controlled my life for far too long