So & Such
So & such are used in English to give a word or phrase a stronger meaning:

It's so expensive!

The weather was so nice yesterday.

That's such a beautiful car!
So is used with adjectives & adverbs:

It's so cold today.

The food is so good!

The man plays the violin so well.

Please don't speak so loudly.
Such is used with nouns:

Your news was such a surprise.

I have such a headache!
It can also be used with an adjective + noun. If the noun is countable, we also use a or an:

He is such an interesting person.

That is such a difficult question!

We had such a great time.
So / Such ... (That) ...
So and such are often used in this pattern. It is not necessary to say that:

I enjoyed the movie so much (that) I went to see it again.

The pepper was so spicy (that) I started to cry.

The sudden noise was such a shock (that) I jumped.

It's such a nice day (that) we should go for a walk at the park.
Compare the differences:
| So | Such |
|---|---|
|
So much / many
|
Such a lot of
|
|
So fun / boring / etc.
|
Such a fun / boring / etc. time
|
|
So long
|
Such a long time
|
Like This / That
Sometimes, the use of so and such means "like this / that":

I didn't know there were so many people from all over the world in Vancouver.

Why are you so late?

I didn't realize you were such a good cook!

How can you say such a thing?