How to increase english conversation skill

Good evening Mr. [Name]^^

Well, this is your first essay with me and I am proud of you.

Not as clear as a crystal, but the good thing is I understand your point.

Try to compare the sentences and if there are any questions about the corrections feel free to ask me any time^^

Good work!

I have been learning English for many years.

>>CORRECT!
 Nevertheless, we feel difficulties in expressing ourselves, t can be burden especially when we hope to express the simplest thing with a ease word, and simple pattern.

>>Nevertheless, we have a hard time expressing ourselves, especially when we want to express the simplest with easy words and simple patterns, it can be a burden.

We have learn, memorised all sophisticated word that can not be expressed by even the native speaker.

>>We learned and memorized all the refined words that even native speakers could not express.

The more simplest word and pattern I want to use, the more I feel the difficulties.

>>The simpler the words and patterns I want to use, the more difficult it becomes.
 why is this happened?

>>Why did this happen?

Those times when I was in University, I remember the Erich Fromm\'s social science book such as Escape from freedom or Max Weber\'s Protestantism and Ethics of capitalism can be read with a lessen difficulties.( = with a ease ?)

>>When I was in college, I remember that I could read less difficult social science books such as Erich Fromm\'s escape from freedom and Max Weber\'s Protestantism and the ethics of capitalism.
 But as times go by, I feel more uncomfortable, it is not getting better, only when I want to express the current situation, explain myself , my emotion toward peoples.

>>But as time goes by, I feel more uncomfortable. My language skill is not getting any better, I only speak when I want to express the current situation, explain myself and emotion towards people.
 Probably I make a step by step accomplishments, from complicated to simple, difficulties to ease,

>>Probably I am making a step by step accomplishments, from complicated to simple.
 This is a very strange thing.

>>CORRECT!