Painting portraits

I have been painting portraits for many years now. I would guess almost twenty years. I have to admit that painting portraits or painting at all is not as fun as it was in the beginning. I am sure that you understand what i am talking about if you are an artist. sometimes i am inspired and other times it feels like a bore or what you may say. My english is far from perfect, but i still am trying to say something about my life as an artist.