That's one hell of a subjective subject. What may make me happy might be awful for you.
There is also the school of thought that even positive emotions and states are painful, as they are inherently dualistic. You are making the distinction that one thing is good, happy, and desirable while another is bad, depressing/sad and you must avoid it, instead of viewing experience as a whole, as both, and cultivating being accepting of experience. This theory argues that the stress created by dualistic thinking is a cause of suffering itself.
Which probably doesn't help you at all, sorry.
If I can say something useful though, I find Buddhist nonattachment very helpful, when I can keep it in mind. You might benefit from researching it. Happiness, sadness, depression, anxiety, joy, pain, they are all just emotions and thoughts, passing temporarily through the mind. We (humans) tend to get very caught up in these things, become very involved with them, believe they are real, relate to them, even think they are us. Run from them or chase after them (attachment/aversion). Taking a breath and getting some perspective on the transient and highly influenced nature of thoughts and feelings, and letting them pass uninterrupted without identifying with them, helps in developing serenity at least, which according to the above theory, frees us from dualism and its suffering.
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Alexithymia - 147 points.
Low-Verbal.