Question

我写了一段英文，大家帮我看看有没有语法和用法上的错误呗！谢谢各位了！

Finally, I did these things, on the one hand is to develop your own skills, On the other hand is that you can contribute to society. Do not complain, I do everything good for you; Do not doubt, you will understand what I practices in the future how wise; Do not let up, your future is competitive. Your progress showed me all the efforts you’ve made and I’m really proud of you! Someday you'll understand my love for you is how deep, multiple!
最后，我想说我所做的一切，一方面是培养你自身的能力，另一方面，是让你们可以为社会做出贡献。不要埋怨，我所做的一切都是为了你好；不要怀疑，你以后会明白我的做法是多么明智；不要松懈，你的未来是竞争激烈的。而你的成功也会让我为你而骄傲！总有一天，你会明白我对你的爱有多深，多重！

Answer 1

供参考：
Finally, I want to say that I did all these things with the hopes to develop your own abilities as well as enabling you to make contributions to the society. Do not complain, I did everything for your own good. Do not doubt, you will understand how wise I was. Do not loosen up, your future will be competitive. I will be really proud of your success! Someday you'll understand how deeply and earnestly I love you.

Answer 2

中国式英语

Answer 3

恩 中国式英语on the one hand 改成on one hand
you will understand what I practices in the future how wise改成you will understand how wise what l have done is in the future等 you will understand ……中 understand 是动词后面跟从句的话跟宾语从句