atypical depression?

I'm a 30 y/o Man.

About 9 years ago something happened ( if there was a trigger I don't know what it was )

I first realized I was something wrong when I realized all of my romantic drive was gone ( no libido & I no longer woke up with erections, either ), and I was mostly impotent. After some time I realized It was larger than that, and the best word I know for myself would be anhedonia, or lethargy. I also have low energy, and difficulty motivating myself to do much of anything, and some difficulty concentrating.

I visitted an endocrinologist many years ago to check my thyroid and sex hormones, and they checked out as in acceptable ranges.

A few years ago I finally visitted a psychiatrist as depression was all I could think of ( though I have none of the feelings of worthlessness/self doubt described as depression )

I tried ssri's ( citalopram ) for about 18 months, but these did not bring back any feeling or enjoyment to my life, and made my sexual dysfunction even worse. The most I can say for the ssri was that i had a small increase in energy, but small.

I'm finding it hard to manage my life at this point.

Is there anyone out there with some insight as to what is wrong with me, or what might help?

I'm thinking of trying anti depressents again, but with an additional therapy, like lithium, or abilify.