Personally I think life mostly sucks. Sometimes and for some people it doesn't. But for most on this planet it sucks big time - and once you reach a certain age it's all downhill too. You can look forward to incontinence pads, baby feeders, loss of hearing, sight and reason and being looked after by a Filipino you don't understand and doesn't understand you. That's if you're lucky.
It's all about perception. You're viewing it from a glass half-empty perspective. It's not all doom and gloom if you don't choose to view it that way. One of the happiest periods of my life was the summer I spent in the old country. Most people were poor and didn't have much by Western standards but they were happy, you could almost feel the happiness and liveliness in the air, and it rubbed off on me and made me happy and carefree. Depression is much more common in Western societies than in Eastern ones, despite life being objectively worse in a lot of those societies. I've read somewhere that people who reflect and contemplate more are more prone to depression, as are people who are more ambitious than average. It's all in our minds.