I think I didn't cure it enough. I had the same issue with the potatoes this year. The great thing about gardening is you alway get a fresh start in the Spring!
Well some types of garlic grow larger then others. Mine is a porcelain variety that I have been growing for a few years that I call Brickyard. Good seed stock is needed, as is soil. The larger the clove you plant the larger the potential for big heads if everything else is optimal. Light fluffy well draining soil high in OG matter/compost is ideal. My garden is organic and I have built my soil up really well over the years so I don't use much fert. a little fish and seaweed emulsion and thats about it. as for storing garlic that depends on variety also- some store much longer then others. Make sure its well cured before you store it. We hang ours up in large onion bags after it has cured in the basement that has moderate humidity and air circulation and stays around 55-60F.
See above