Please Check Grammar(Short)?

1. The first needs to be "If I can make cool cars and clothes, [something]." Right now it's a sentence fragment.

2. Cook big meal needs a Subject, "[I,he,she,they,it] [will cook, cooked] a big meal."

3. Correct.

4. "New" and "Journey" should be lowercase. "Morn" is basically the word "morning" but it isn't used much anymore. The way it is used in that sentence it doesn't make sense. After "than" you should have either "a" or "the."

edit: It doesn't make much sense as more either. I'm not sure what a born city is, is it the city you were born in? In that case, put "A new Journey, you will discover the world is more than the city you were born in."

Also, they all need periods.

Good job though!

I agree with the first answerer that it's not really clear what you're trying to convey in your sentences, but I will try and help.

- If I could construct cool cars, clothes...

- Cook a big meal

- They will finally give me what I need (correct)

- Embarking on a new journey, you will discover that the world expands beyond simply the city where you were born.

If I can make (create?) cool cars and clothes

Cooking a big meal, I am cooking a big meal, you/they are cooking

They will finally give me what I need

A new journey; you will discover that the world is more than... (I don't understand what you're saying in that last part).