Hello you guys.

"Hello you guys" sounds a bit direct and unnatural with the 'you' in there; a more natural way to put it might be "Hello guys", "Hey guys" or "Hi guys". (using 'guys' makes it more casual, so "hey" or "hi" feels better with it for this reason)

I have recently finished a quite good research report and I(I) got some kind ofa compliment for it.

"Some kind of" implies uncertainty and feels a little odd in this sentence, you could try putting "and I got a type of compliment for it" if you are talking about getting a type of compliment.

This recognition does not hagive any meaning tosomething that would help me show off to anyone.

The usage of 'meaning' here feels a little odd – you could potentially replace it with 'purpose' or 'reason'? Otherwise I rewrote it if your intention is to say the recognition doesn't give you anything that you would show off to people specifically.

You might also be able to word it as "This recognition does not give any meaning that I can show off to anyone".

Its biggest meaningThe meaning of this compliment/recognition is likely to make me think thatrealize I am not asuch bad at (my) work as I thought.

Depending on your meaning, you could also say "make me think/realize that my work is not as bad as I thought".

I changed "think" to "realise/realize" because this implies more of a change in mindset due to the recongition, however "think" still works.

You could also say "Its biggest purpose/benefit is likely to"

Honestly, it is kind of a meaningful milestone in my working journey.

It makes me feel more relief and confident soce that Iif I leave my job in the upcoming timnear future, it would be because I would like to change to a better & interesting job, notrather than running away asfrom challenginges.

You could also put "it makes me feel more relieved and confident", which would feel more natural.

I was not entirely sure what this sentence meant, so the way I reworded it might not have been completely accurate to your meaning; you can clarify if you need.

I have recently finished a quite a good research report and I got some kind of compliment for it.

"A quite good" sounds unnatural to me. The correct order of words is "quite a good".

This recognition doeis not have any meaningt to help me show off to anyone.

Its biggest meanmain poingt is likely to make me think that I am not asuch bad at work as I thought.

(1) point: purpose that can be gained from doing something.
"Biggest meaning" is understandable, but is not a natural expression. Allow me to suggest "main point".
(2) The phrase is "as X as I thought". The two "as" exist as a pair.

It makes me feel more reliefved and confident so that Iif I leave my job in the upcoming timfuture because I would like to change to a better &and (more) interesting job, noI won't running away asfrom challenginges.

(1) "Relief" is a noun. "Relieved" is the adjective.
(2) In this context, we don't say "in the upcoming time". We'd just say "in the future".
(3) Your use of the ampersand ("&") is correct, but in most situations, we'd just spell out the full word "and", especially in non-casual writing.
(4) You can consider writing "more interesting" rather than just "interesting", because the latter might imply that your current job is not interesting (unless it's not, of course).
(5) I rewrote the final clause of your sentence based on my best guess.

This recognition does not have any meaning tomean help me to show off to anyone.

Its biggest meaning is likely to make me think that I am not suchthat bad at work as I thought.

It makes me feel more reliefved and confident so that I, if I leave my job in the upcoming time because I would like to change to a better & interesting jobone, not running away as it's challengings.