It's not 6 months it's one year. It resets your clock to apply for citizenship but it's a year.and you can also apply 2 years re entry permit twice. You can now a days hire a nurse in Nepal too for 24 -7 care.but nothing like moving back. Just giving you some facts so you can make better decisions. But I am in a same boat and wish I had never come here or returned back after my under grad.