If you want to do less but to get more, then you definitely have to find a way to grab a fortune.

I think "to" is extra.

Of course, it would be great to find a real flock, or a school, or even a swarm of fortunes, so it would be much easier to catch just one from it ...

We don't use just two dots to suggest an open ended sentence. In English we use three...

But in any way , you have to know some secrets of this rather a complex craft.

"anyway" is one word and doesn't take the preposition "in"

And what to grab exactly, when you are very close and have to act?

This might be an optional comma.

Some people say that a tail is the key element here.

May be they are right ... But who can say exactly how it looks exactly ?

This is a more natural way to word the question, but your wording puts the emphasis on "exactly" so it might be better since you go on to discuss this point in detail.

Bbecause nobody yet has reported seeing a fortune that is an elephant size yet) so..

There are several points here, and I am unsure about some of them:

1. I don't think the "B" should be capitalized because the "M" of most isn't. It looks incorrect to have a capital letter in the middle of a casual aside that isn't written in complete sentences.

2. to get the meaning across quickly, it can be helpful to eliminate extra words: "an" is not needed in your sentence.

3. I think "yet" could go where you placed it, but it sounds more natural at the end.

4. Another version would be "because nobody has yet reported seeing an elephant size fortune"
Here "an" is needed because it modifies the noun "fortune."

If it is like a bee, then it ihas a sting...not a tail.¶
If it is like a bee, then it has a sting in there... and not a tail.

The shorter version is clearer.
"in there" is a common and very informal phrase, and could be used to mean it is so tiny, it's hard to see or know what that part of its body looks like, but "there" by itself is not enough.

So you should be careful here , no rush.

Exactly as I said ... no jokes here at all .

There are rules or conventions about dots / a series of periods in English. You can look them up, but you never see just two. It's usually three, and they are spaced differently depending on their function. Three in a row starting with a final period suggest an open ended thought, or a kind of pause to me.

They beleieve that it is absolutely necessary to touch (and much better to do ittouch several times, or even several tens of times) the breast of Juliette.

Grammatically, the parenthetical part of the sentence ( ) doesn't work with the expression "to do it."
It works well with the verb "touch" and I think it is ok to repeat it because that is what they are doing repeatedly.

[Look as it brights on a] statue of Juliette in Verona!

This part of the sentence needs revision. Depending on what you want to say or emphasize, here is a suggestion:
"Look how this belief has brightened the statue of Juliette in Verona!"

WhatAs for me I sill not sure..

This is an idiomatic phrase "As for + pronoun or name of person"

HI have no references here until am 100% sure.

"have" is ok, but "add" might be better

So, I continue my search ...

This comma may be optional