英语改错

During the weekend I travelled by the(去掉the) air for the first time in my life. I usual改为副词形式（usually） travel by train or bus. It's(They're) both cheaper（cheap,没必要用比较级，both,and连接的词前后形式一致，都用原级就行） and safe. But to fly in the sky was（is这是客观事实，用一般现在时） something new to me. At the end(begining) I felt a little nervous. But very soon I became excitin(exited表示人的一种状态，exicting修饰物） when I found me(myself自反代词) high up in the sky among the clouds. I also found that mountains, fields, river(rivers) and so on were interestingly small. I enjoy the frightening and comfortable journey very much. After all, it is more interesting（加to） take a plane than to take a car

During the weekend I travelled by （the） air for the first time in my life. I (usual)usually travel by train or bus. (It's)They're both (cheaper)cheap and safe. But (to fly)flying in the sky (was)is something new to me. At the (end)beginning I felt a little nervous. But very soon I became exciting when I found (me)myself high up in the sky among the clouds. I also found that mountains, fields, river and so on were interestingly small. I (enjoy)enjoyed the frightening and comfortable journey very much. After all, it is more interesting (to) take a plane than to take a car.

tangchenhuatch说过的我就不说了.
第一行, by air
第二行, both cheap and safe, 最好连both也不要用, 这样说可以, 但是不太常见.
第三行, became excited. 后面还有一个among the clouds是说你不在云中, 而是在云间, 如果你是想表达这样, 那就是对的. 否则用in the cloud.
第四行, I also found out, rivers

第五行, 要不就说than a car, 要不就说than take a car. To take a plane这里有to, 但是than后面没有.