People who have stayed with flatmates and now stay alone, which is better?

I have been staying in a 3BHK with my sister and a friend, but they are moving out soon. I am in my late 20s now and feel like leaving alone will be better. But if I opt for 1BHk, I will probably have to do all of the chores by myself. I don't think having a cook/maid for just me will be cheap/good idea. I can afford and manage this stuff, but never had to do it by myself till now. So I don't know what to expect.

If you have been through this, please let me know how was your experience. Do you regret moving in a 1BHk, do you think having flatmates is better? Also, what will be better place to move near EGL, Domlur if I want to stay alone?