phrases: to have trouble with, at least

English as a Second Language English Vocabulary, Grammar and Idioms
1

I’m not sure if the sentences below are correct english. Please correct them if neccessary. thanks!
I have trouble with my parents.
I got in trouble with him.

at least
I am at least on the third place. (in a race for example)

2

The first two are correct.

The 3rd isnt, It would be “I am at least third place”, or “I am at least third”.

3

In the US, we’d say “in third place” not “at first place.”