How do you define happiness?

Happiness, to me, is a state of mind when you are at peace with yourself and not worried (even if you have a sea of problems, you know that you will sail through).
All the 3 points that you mentioned are also true.
You don't feel the need to wait for anybody to accompany you while doing anything or going anywhere you like (if someone is available, that's fine as well).
Also, it is also about being mindful of yourself and your surroundings at any given point of time. You are able to have a calm mind when you're alone and don't even have any external stimulus, like gadgets/music, for hours at a stretch.
And, I believe if you're not happy with yourself, you won't be happy with anybody else.

Happiness is the feeling you get by helping someone in need without ever expecting anything in return and knowing that your help made a difference.

Happiness is not a constant emotion.. it comes is wave. Deed after deed. The more you give without expecting anything the more you’ll be happy, it comes from the state of abundance.

I have given up on 3rd, but first are more than enough🙂✌️. Also by home i include my entire family.

I define happiness with getting something I have no chance of getting. ✅