There's not such thing has "how much saving is enough" . It varies by individuals and what their goal is. Money is never enough. When you have $10k savings you want $20k, when you have $20k you want $40k..so it never stops. Best thing to do is listen to your heart. Ask your parents what they want. Make them happy. if you think it's your responsible to take care of them just go home and enjoy your time with your family cuz that moment will not come back later even if you wanted later. Be happy, enjoy !

Goo luck.