Some Sentences Oct 4 2015 (If there’s something wrong, please correct me.)

①
I laid around this weekend.

(or you could also say: I had a lazy weekend.)

②
I’m planning to live in other countries after I finish my schooling. I would like to live and work in different countries because I would like to see different cultures and meet different people to expand my experience.

③
When I was a college student, I was not interested in going abroad and did not know the outside. I was narrow minded.

④
Sometimes, you need to step back and see the big picture.

⑤
If I spoke English well, I would get on better with some friends.

Some Sentences Oct 4 2015 (If there’s something wrong, please correct me.)

①
I lazed around this weekend.

I had a lazy weekend./I was lazy this weekend.

②
I’m planning to live other countries after I finish my school. I would like to live and work in different countries because I would like to see different cultures and meet different people to expand my experience.

I'm planning to live in other countries after I finish my schooling. I would like to live and work in different countries because I would like to see different cultures and meet different people to expand my experience.

③
When I was a college student, I was not interested in going abroad and did not know outside. I was narrow minded.
When I was a college student, I was not interest in going abroad and did not know what was out there. I was narrow-minded.
④
Sometimes, you need to step back and see the big picture.

This is correct

⑤
If I spoke English well, I would get on better with some friends.

If I spoke English well, I would be closer with some friends. (I'm not sure if I understand your context here.)