An enterprising person is one who comes across a pile of scrap metal and sees the making of a wonderful sculpture. An enterprising person is one who drives through an old decrepit part of town and sees a new housing development. An enterprising person is one who sees opportunity in all areas of life.
I do not think reading the mystics would hurt you myself: you say you must avoid books which deal with 'feelings' - but the mystics don't deal with feelings but with love which is a very different thing. You have too many 'feelings,' but not nearly enough love.