Sprawdźcie błędy :D
Miał być czas Past Continues i Past Simple

It happened two years ago. I remember the date very well. It was 8 June 2007. I was watching a Formula 1 race. And this day was Grand Prix of Canada.I sat down in my armchair and this time I started supporting.
Initially all drivers started from their poles. Robert started very good and he was third. Then there was a very exciting fight. Then there was a very exciting fight between Lewis Hamilton and Kimi Raikkonen. Unfortunately, it didn't take long, because was stopped by young McLaren driver who suddenly caused an accident at pit lane. Thanks to that crash, Polish driver has become a leader of the race. After that he was leading for all other laps, so he win! He showed a piece of really good driving. I was very, very happy, and all polish people were happy, too. It was amazing, because it was his first win in his short career.

It happened two years ago. I remember the date very well. It was 8 June 2007. I was watching a Formula 1 race. And__ IN__ this day was Grand Prix of Canada.I __sited__ down in my armchair and in this time I started supporting.
Initially all drivers started from their poles. Robert started very good and he was third. Then there was a very exciting fight between Lewis Hamilton and Kimi Raikkonen. Unfortunately, it didn't take long, because he was stopped by young McLaren's driver who suddenly caused an accident at pit lane. Thanks to that crash, Polish driver has become a leader of the race. After that he was leading for all other laps, so he __won__! He showed a piece of really good driving. I was very, very happy, and all polish people were happy, too. It was amazing, because it was __him__ first win in short career.

poprawione:)
troche to poplątane co wymysliłeś/aś ale powinno być ok