It is best to try to interpet the dream yourself, things to ask yourself is , what emotions was I feeling during the dream? e.g Scared? Protected?, Happy? content? ect!
What do I feel the Snakes represent to me? Or who do the snakes represent to me? Parts of your unconscious? people in your life? ect!
What do I associate the colour of the snake to?
What does your anklet mean to you? e.g does it have any emotional or spiritual significance to you?
Just ask yourself questions along those lines and see if you get a better understanding of the dream.
From my prespective of the description of your dream it sounds to me like your going through a change of some sort either spiritual or maybe even physical or it may even be your animal totem/spirit guide trying to communicate with you.
Just take the time to analyze anything that stands out from the dream, with your description of the dream, the main things seem to be, Snakes,the colours brown,blue and black and the anklet you wear.
Just try to piece all of the pieces that mean something to together to try and help decipher it's meaning to you.
good luck with it.
Love and Light