i feel like your post is suggesting that if we say we're happy then we haven't looked deep enough into our lives and emotions? happiness isn't a myth.. i'm happy and asking me questions about it won't change that. i'm not in denial or not 'deep enough'. i'm happy because i let myself be. i'm happy because i've never known what it feels like. i'm happy because i make that choice everyday. when my mind tells me negative things, i continue my life anyway because i deserve to. i'm a human being who deserves to be treated like one and have good things happen to me.
i think a lot depends on your outlook. i was convinced i was going to be a negative person for the rest of my life and that i'd never be happy. you can't sit around and wait for something to make you happy, you have to give happiness a chance. instead of putting myself in a corner and not letting myself join in with anyone/have fun, i figured i had nothing to lose and tried accepting myself. i suppose that was the biggest thing for me, letting myself do things i want to do but was always scared of doing.
when you're able to do that after years of being unable to, you are grateful for it. 'normal' people might just see having a conversation with someone as an everyday thing but after being miserable and depressed, avoiding people because you think you're inferior to them, it makes you grateful that you're able to do things like that. i'm honestly happy everyday that i get to talk to people because i spent years of my life unable to.
i suppose also after having health scares and seeing how anyone's life can be taken at any minute, i'm grateful again for what i do have. that will always be the focus for me because if you mope around all day, one day you might actually be given a reason for it and you've spent your whole life never being happy and blaming all the external factors when really you were the one causing your own unhappiness.
to answer your question, no i don't have everything in my life where i'd like it. i don't wake up in the morning looking forward to the day nor do i go to bed satisfied with what i've achieved. that absolutely does not mean i can't be happy. happiness isn't being able to go through your day plain-sailing, it's digging those holes and picking yourself up anyway because you deserve to.
unless you're a bad person then bye