You're vs Your

Do they completely have similar pronunciations?

Haven't you noticed that there is a wide variety of pronunciation patterns in English? Some may pronounce "you're" and "your" in the same way, others may not. If you can't look up some standard pronunciations in a dictionary, why do you expect us to care to so for you?

They sound exactly the same to me.

both are [j@r] for me

<<If you can't look up some standard pronunciations in a dictionary, why do you expect us to care to so for you?>>

He (or she) is just asking about pronunciation. Dictionaries transcriptions are always imprecise, often so misleading that they could be wrong. So stop being an annoying demotivator and start saying something useful.

The vowel sound is totally different for me.

The dictionaries: Merriam-Webster and American Heritage don't have a good pattern of pronunciation? At least for GAE?
What you mean "could be wrong"?

Utilizing this subject,
Looking for a word in the dictionary.
I'm very intrigued with the pronunciation of the word "opinion".
Can someone help me ascertain the correct.

This word have 3 syllables distinct:
What is the correct way?

@"pIn.j@n
--or--
@"pI.nj@n
?

Native speaks "ion" separataly, or speaks "nion"?

As a native speaker, I have no pause between the 3 syllables of opinion. I would think that o-pin-ion, or o-pi-nion, or even op-i-nion and op-in-ion are really all the same.

But unfortunately does not seem to be the reality, you have syllabic breaks on speech. I think that phonetically it is impossible to speak this word, without a pause.

I think if I talk "opin.ion" will sound very strange for you, but it is what the dictionary says.
Listening to a recording, it seems that the correct is "opi.nion"