Another barrier to happiness is the absence, or weakness, of a scholarly network. Working in isolation, thinking that nobody cares about your work, can easily make you unhappy. The way I've solved this problem for myself is through blogging. Honestly, I cannot get enough prolonged contact with good minds through teaching, interacting with colleagues at the office, occasionally seeing people I know at academic conferences, and the odd citation to my work here or there. It's just not enough, even when it's all added up.
I see no problem with blogging, even for people in early stages of a scholarly career, as long as you don't see it as substitute for the sustained attentions of scholarship. You can use twitter, facebook, or linkedin too. The point is to diminish the solitary nature of writing by writing directly for a more immediate audience. Once you have academic publications, make sure they are available online as much as possible. Do what you can to increase your network in RL too, but networking possibilities are greatly expanded through the internet.