帮我检查下我写的这段英文有语法错误吗 跪求各位大神了

Take me for example. When I started school in September ,myheart always have a sense of loss and frustration,Becausesuddenly there are many capable peoplearound me, I always felt inferior to others. Then I realized, too care aboutthe opinions of others, will only make me missed a lot of happiness.In fact, sometimes suddenly come up witha good idea, draw a funny cartoon, even find my flowers grow taller, which canmake me very happy, be full of happiness. happinessalways been with us,The keyis how to find it, understand it, feel it, and create it.
这是我想表达的意思：
比如说我刚上研究生的时候，心里总有种失落感和挫败感，因为周围能力强的人突然多了，我总觉得自己比别人差，所以总是很不快乐。之后我想通了，太在意别人的看法，只会让自己错失很多的幸福感，其实，有时候突然想出一个好点子，或是画出一个搞笑的卡通小人，甚至发现自己养的花突然长高了，都会让我很高兴，充满幸福感。其实，幸福每时每刻都伴随我们左右，关键是如何去发现它、理解它、感受它、创造它。

Take me for example（书面文章不要用口头句型，直接For example就好）When I started school in September ,myheart （用I作主语就可以） always have （过去式had) a sense of loss and frustration. Because suddenly there are (过去式were) many capable people around me, I always felt inferior to others.(这句写得不错） Then I realized, too care （caring too much动名词作主语) about the opinions of others, will only make me missed （miss原型）a lot of happiness.In fact, sometimes （漏了个I吧，后面动词都改过去式）suddenly come up with a good idea, draw a funny cartoon, even find my flowers grow taller, which can make me very happy, be full of happiness（此be短句多余，且不合语法）. happiness (漏了has) always been with us,The key is how to find it, understand it, feel it, and create it (保留最后一个it即可）.

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