Homemade thick yogurt

I WANTED TO MAKE SOME YOGURT SOYBEANS THE OTHER DAY, BUT I FOUND THAT THE YOGURT WAS SO THIN AND INAPPROPRIATE. SOME OF THE SO-CALLED DENSE YOGURT (OLD YOGURT) ON THE MARKET IS PARTLY THE RESULT OF THE ADDITION OF GEL, WHICH IS FROZEN AND PRESERVED, AND THE ADDITIVES ARE NOT GOOD FOR THE ORIGINAL PRACTICE. JUST A FEW DAYS AGO I MADE THE REST OF MY BIRTHDAY CAKE, SO I DECIDED TO MAKE MYSELF A THICK ONE, AND THEN I COULD BAKE. I LIKE TO MAKE IT ORIGINAL, SO THERE'S NO SUGAR IN THE SQUARE, AND IT'S ALL THE LATER TASTES OF ITS OWN, LIKE HONEY, NUTS, DRIED FRUIT, CEREALS, AND SO ON, AND IT'S ONE OF THE JOYS OF TREASURES, EVERY TIME DIY IS A BRAND NEW TASTE. I USED A HOT YOGURT MACHINE ON A TREASURE, EASY, WITHOUT ELECTRICITY, WITH RAW MATERIALS, USUALLY AT NIGHT, AND THEN AT NOON THE NEXT DAY. IT'S CHEAP TO BUY YOGURT. IT'S EXPENSIVE。