Time is threatening me and my ego

I had a very vivid dream the other night where an extremely large rattlesnake bit me on the right hand several times. The final time it stuck its fangs into me I pried open its jaws, pulled the teeth out of my flesh and flung the thing to the ground.

I looked this up in a dream dictionary and this is what it said: (I couldn't find anything about the flinging)

Rattlesnake

To see a rattlesnake in your dream, represents the passage of time.

Snake

To see a snake or be bitten by one in your dream, signifies hidden fears and worries that are threatening you. Your dream may be alerting you to something in your waking life that you are not aware of or that has not yet surfaced. The snake may also be seen as phallic and thus symbolize dangerous and forbidden sexuality. The snake may also refer to a person around you who is callous, ruthless, and can't be trusted. As a positive symbol, snakes represent transformation, knowledge and wisdom. It is indicative of self-renewal and positive changes.

Hand

To dream of your hands, represents your relationship to those around you and how you connect with the world. Hands serve as a form of communication. Perhaps you need to lend out a helping hand to someone. In particular, the left hand symbolizes your graciousness and feminine, receptive qualities. And the right hand symbolizes masculine, active attributes. It may also be a pun for some decision or something being "right".

To dream that you hands are injured, denotes an attack on your ego.