DAE feel like the outcome of life doesn’t really change no matter how positive they think?

It’s like I keep trying to overcome feeling sorry for myself and I really feel like I succeed in doing so and have made it to a place where I’m content with life and how I get on with people…
yet some days just serve as a reminder of how disconnected I am by thinking positive and that what I really should feel is the unhappiness that I’m simply pretending I’ve escaped?

It’s like I can’t even use a positive attitude to escape. That I’m constantly left feeling bereft by the time I finish my day. Like my attempts at being positive are futile and I should face up to a reality that my life really does suck. It’s not just in my head, it’s the truth.