(Long) What if I wind up being my mom's only family?

Your mother does not need taking care of....she needs support. You will make her happiest if you continue your plans for college, do well, and make a good career. There may come a day when your mother will need to be taken care of, but that day has not come yet. You are making umptions that are not correct. You have siblings that will help, etc. Stop taking the weight of the world on your shoulders and get on with your life. GW