YOU SAID:

the last time I went to school was yesterday and it caused me to fall asleep when I got home

INTO JAPANESE

私が最後に学校に行ったのは昨日で、家に帰ったときに眠りに落ちました

BACK INTO ENGLISH

I last went to school yesterday and fell asleep when I got home

INTO JAPANESE

私は最後に昨日学校に行き、家に帰ったときに眠りに落ちました

BACK INTO ENGLISH

I finally went to school yesterday and fell asleep when I got home

INTO JAPANESE

私はついに昨日学校に行き、家に帰ったときに眠りに落ちました

BACK INTO ENGLISH

I finally went to school yesterday and fell asleep when I got home