question of unfinished projects, is it lazyness or multitalented nature?

I often have hard times understanding myself. I am literally torn between a good number of equally exciting interests. I am keen on investing myself in all these unrelated and scattered works: dancing and being serious about becoming a salsa semi pro; following and researching all other imaginable and possible forms of dance; business, marketing, management, personal finance & investment, economics; graphic design & web design; interior design; neuroscience, cell research& cancer, magnetism & electricity; quantum physics; curriculum theorising; philosophy; traveling; education, teaching English, psychology- cognitive, behavioural, counseling; statistics and research; languages and culture; barrister art, coffee machines and perfect espressos; parenting; writing & public speaking; playing a musical instrument; evolution & Darwin; religions, spirituality, metaphysics. All of the above fascinates me and demands me to invest a good part of my attention and effort on itself very loudly and clearly. And, do I not try to do my best to spend time on all of my interests. As a result, I have projects and books unfinished, and my soul in flames of fire from intense desire to do all and overwhelming realization that I can not. It is not humanly possible. Sometimes I go into a stooper and slight depression because I know I want to do too much. Other times, I make attempts to balance my interests giving my attention to some of the major ones which I decide to pursue at this point of time.