I WANT TO BE A FAMOUS WRITER SOMEDAY

I AM FROM INDIA, I RESIDE IN A LITTLE SUBURB IN WEST BENGAL. I HAVE A VIVID IMAGINATION WHICH GETS STUNTED WHEN I SIT DOWN TO PUT ITNTO PAPER. 

I AM TRYING TO WRITE MURDER MYSTERIES, BUT I DO NEED POINTERS & SUGGESTIONS, AND PLEASE, IF I GO OFF TRACK OR BORING, BE PATIENT WITH ME BUT CORRECT ME AS WELL