ANSWER:

You are sinful for delaying to make them up and must make them up now when obstacles do not exist. You can combine them to Sunnah fasts for double the reward by fasting every Monday and Thursday

QUESTION: I am 47 years old. I always have intention to keep my missed fast later on, but I keep forgetting and next Ramadan comes. How do I replaced my fast all the previous year and now it’s getting harder to replace!