Hi Efe, here is my correction as a native English (American) speaker:
One winter day
I woke up at seven half past 7:30 today this morning. I prepared After eating breakfast, . Than I went to universty by bus then I took the bus to the university. But Unfortunately, the bus came too late, so . I didn't join I missed the first lesson. I m This made me unhappy. (<em>An exclamation point (!)would add emphasis here.</em>) Later, my teacher wrote full students on prepared his (<em>or her</em>) attendance list. than Then I went to the refectory (<em>In american english you might use cafeteria</em>). I ate a lunch but I was alone. I went out and went to the sport centre (<em>in American english you could use athletic center, health club or gym</em>) and I did sport by played sports for two hours.than Then I come at my went home and I m writing it text began writing about my day.