So or Such?

(This is an exercise of my homework, please, correct me, thanks)
-I was having "such" a bad time that I left early.
-She was "so" cold that she couldn't stop shivering.
-I don't think I've ever been "so" happy in my life.
-It was "such" an expensive restaurant that I don't think we'll ever go back there!
-He got there half an hour late to meet me. I was "so" angry.
-This is really hard. The teacher's never given us "such" a difficult test before.
-We've never seen "such" bad weather before at this time of year. at this time of year before.

You used "so" and "such" appropriately. Good job!

So or Such?

(This is an exercise of my homework, please, correct me, thanks)
-I was having "such" a bad time that i left early.
-She was "so" cold that she couldn't stop shivering.
-I don't think i've ever been "so" happy in my life.
-It was "such" an expensive restaurant that I don't think we'll ever/think we'll never go back there!
-He got there half an hour late to meet me/for our meeting, and as a result I was "so" angry.
-This is really hard, the teacher's never given us "such" a difficult test before.
-We've never before seen "such"· bad weather before at this time of year. (I want to separate the 'before' from 'this time of year' - 'before' relates to 'seen' and not to 'time of year')

The phrasing of 'got there half an hour late to meet me' just worries me a little, as to whether it is ambiguous. For example: 'He arrived half an hour late (intentionally) to/so that he could meet me

Every use of 'so' and 'such' here was correct.  But it is 'not so difficult to answer such simple examples!' haha.  If I am correct 'such' modifies a noun, and 'so' modifies an adverb or adjective?

So or Such?

(This is an exercise of my homework, please, correct me, thanks)
-I was having "such" a bad time that i left early.
-She was "so" cold that she couldn't stop shivering.
-I don't think i've ever been "so" happy in my life.
-It was "such" an expensive restaurant that i don't think we'll ever go back there!
-He got there half an hour late to meet me, and i was "so" angry.
-This is really hard because the teacher's never given us "such" a difficult test before.
-We've never seen "such· bad weather before at this time of year.