Present Perfect vs. Simple Past A

I (never/have) a really terrible job interview.

Once, I (forget) to switch off my phone when I was at the cinema.

I don't have very much work experience, but I (be) in charge of a small team. I (be) the leader on a project in school.

I (get) some useful work experience last year.

I (study) hard this year, so I hope I can pass my exams.

I (always/be) able to express myself clearly since I was a child.

I (already/work) for more than three organisations.

I (know) what career I wanted when I was a child.