I think that I have a clear answer what "something "as to what I would like to improve.

TWhere is no lightness, no comfort, no selfconfidence inside when I have to act it.n I have to act, I don’t have confidence.

I really want to feel strength and power when I start talspeaking, but until now ithat has only been my dream.

It all happensed because I have to negotiate in English and Italian quite often.

It is a great stress to me because I have to win at least 4-5 deals out of 10, which is difficult tofor me.

I think I have a clear answer what "something " I would like to improve.

It is my negotiating skillability to negotiate.

A slightly more natural construction.

There is no lightness, no comfort, no self confidence inside when I have to actdo it.

To "act" something implies a performance. Like, to act a character in a show. When used just to mean to do something, I would remove the "it" and say something like, "...when I have to act." But this would still sound a bit dramatic.

I really want to feel strength and power when I start talking, but until nowso far it has only been my dream.

"Until now" implies that things have changed. Things have been a certain way... until now, now they are no longer that way. But I don't think that is what you mean here. I would use "so far" instead.

It all happensThis is all because I have to negotiate in English and Italian quite often.

It is a great stress tofor me because I have to win at least 4-5 deals out of 10, which is difficult tofor me.

And when people talking about money, they rarely joke.

In this type of construction, the verb should not be in -ing form. Otherwise, it feels like another verb is supposed to come after (but it doesn't). Something like, "When people talking about money think about giving it up for something, they rarely joke."

Also, instead of just "joke", you could say "...they rarely joke around." "To joke around" has a more general meaning than "to joke", and is a little more natural to say when you want to say that someone is generally humorous in their tone, and not taking things seriously.

So sometimes I feel envy to yYoutTube bloggers who can just say it asthings however they cwant and get some clicks anyway.

A "YouTube blogger" is simply called a "YouTuber". Or maybe "YouTube influencer". "Blogger" works fine, but it feels kind of old-fashioned to me.

"Envy" as a verb is used in a much more simplistic form. You can feel envy, and you can envy something, but you don't feel envy to something (this sounds a little nonsensical).

How do I train it ?

That's what you've just've asked, correct?

An apostrophe is needed in contracting "that is" -> "that's".

"just've" is not a proper contraction.

Nothing new , really.

May be I also use a long pauses as well.

Make sure that "maybe" is one word, not two.

This year I will continue my training to become a real professional and sell Ccannoli may be 6 or even 7 times to 10 visitors in my shop.

"Cannoli" is not a brand, so it should not be capitalized in the middle of a sentence.

I think I have a clear answer what "something " I would like to improve.

There's a space before the second quotation mark that should be removed.

You could alternatively leave out the word "something" altogether and the sentence would still be valid.

It is my skill in negotiating skill.

Your version was fine, but this is a little more natural.

There is no lightness, no comfort, no self-confidence inside when I have to actdo it.

I really want to feel strength and power when I start talking but until now iso far that has only been my dream.

"Until now" suggests that something has just happened that will change things. "So far" doesn't have that connotation.

It all happensThis is important to me because I have to negotiate in English and Italian quite often.

Your sentence was grammatically correct, but "It all happens" doesn't fit what you're trying to express.

It is a great stress for|to me because I have to win at least 4-5 deals out of 10, which is difficult tofor me.

And when people talking about money they rarely joke.

So sometimes I feel envy to y|envious of YoutTube bloggers who can just say it aswhatever they cwant and get some clicks anyway.

Is this what you mean?

How do I train it myself?

That's what you've just've asked, correct?

Nothing new , really.

There shouldn't be a space before a comma.

I learn new words, watch TedTalk presentations and tprainctice my speeches in front of a mirror.

May be I alsoSometimes I use a long pauses as well.

It would be "Maybe" rather than "May be", but I think "sometimes" fits the sentence better.

"May be" is used with a subject: "It may be..."

ItThey helps.

"Hand gestures" is a plural noun phrase, so you should use "they".

This year I will continue my training to become a real professional and sell Ccannoli to may be 6 or even 7 times toout of 10 visitors into my shop.