我的朋友 (description and comparison of friend)

大家好，

Please would you be so kind as to check my grammar etc. I was trying to describe similarities and differences of my friend and I. Hobbies etc.

你好！这是我的朋友。(Hello! This is my friend.)
我的朋友叫Gracie。(Her name is Gracie.)
他今年十五岁，他的生日是三月二十八号。她是一九九八年出生的，所以她属虎。 (This year she is 15 years old. Her birthday is the 28th of March. She was born in 1998 so she has zodiac sign of Tiger.)
我今年十六岁，我是一九九七出生的，所以我属牛。所以她比我小。(This year I am 16 years old, I was born in 1997 so I have zodiac sign of the ox and she is younger than me.)
我比他高。我的朋友很短，很矮可是她说＂你太高了！＂。(I am taller than her. My friend is short but she says "you are too tall!")
我和她一样瘦。她头发没有我头发那么长。我头发比她头发浅色，因为我头发是金发，她头发是棕色。(We are both slim (the same build). Her hair is not as long as mine. My hair is lighter color than hers because my hair is blonde and hers is brunette.)
在冬天的时候，我朋友和我喜欢去滑冰，滑雪和堆雪人。Gracie 滑冰滑得可好了，因为他均衡均得很好。她的平衡能力很好，我滑得没有她滑得那么好。我应该常常练滑冰！(In the winter time, my friend and I like to go ice skating, skiing and build snowman. Gracie's ice skating is extremely good because she has good balance. My ice skating is not as good as hers. I should practice ice skating more often!)
在夏天的时候，我们喜欢去游泳，骑马，攀岩和冲浪。游泳很好玩，我们都喜欢游泳。她游泳游得好，可是她游得没有我游得那么好。(In the summer time, we like to go swimming, horse riding, rock climbing and wind surfing. Swimming is very fun, we both like swimming. Her swimming is good, but not as good as my swimming.)
我们也喜欢骑马。在夏天，天气真好，晴天，暖和，所以我们常常去骑马。我和她一样好。我和我的朋友都爱马。we also like horse riding. In summer, the weather is really good, sunny, nice and warm, so we often go horse riding. We both ride horses well. My friend and I both love horses.)