Gum Disease

I was told recently the bone is my tooth has decayed and I have to go back for scaling tomorrow. I've read all about bone loss. My god, to get to this stage of decay means I have gum disease. I have spent the last 3 days researching my problem. I cant believe the dentist never told me about my condition. How to brush properly, floss etc. Im quiet angry. I can ill afford peridontal surgery. I have read a water pic would be the thing for deep cleansing of gums. Flossing and regular brushing with a soft brush. Is there anyone out there that could recommend anything else, besides pulling my teeth out.....plz help! Tweet