Determine the valence intensity of the following tweet, considering the mental state of the author. Assign a real number between 0 and 1, where 0 denotes extremely negative and 1 denotes extremely positive.
Tweet: If u #smile too much😀\nu get frown lines,\nif u #cry too much😣 \nu get eye wrinkles,\n\n🔂 laugh&amp;cry\n\n ...it's #life 💗\n\nHave a great day\n\n🍯🐝's