My Day.

I woke up at 7: 35 am. I saw watched some videos, some of them about the life of Martin lutter king, and some others about Steve Jobs. Also, i did a lot of things such as: I wrote something to with one of my friends, I listened music, I sang some songs, I took a shower and I went to prepared my food / somehting to eat. Also, I eat ate sandwiches, I went to the store and bought bananas, nuts, blueberries, and I took the bus home. I came back to my house and spoke with one student; I read some articles about robotics, and searched for some news about robotics, and I saw the some pictures of my friends.

YOU REALLY OVERPUNCTUATE...... EASE ON THE COMMAS/LISTING.
ALSO, WHILE LISTING YOU DONT HAVE TO REPEAT THE SUBJECT PRONOUN ALL THE TIME IF IT IS THE SAME ONE PERFORM THE ACTIONS OF THE VERBS 

My Day

I woke up at 7: 35 am and I saw watched some videos. Some of them about the life of Martin Luther King and others about Steve Jobs. (Later / then) I wrote with to one of my friends, I listened to music, I sang, I took a shower, I went to prepare my food, I eat ate sandwiches, I went to the store and bought bananas, nuts, blueberries, I took the bus, I came back to my house and spoke with one of my students, I read some articles about robotics and searched for some news about robotics, I saw looked at the pictures of my friends.

Hi Rosalba. This can be greatly improved by using some 'time expressions' and linking words instead of just, "I did this, I did that, I did the next thing etc."

Here is an example...

Later in the day, I went to the store and bought some bananas, nuts and blueberries. I returned home by bus and spoke with one of my students. Then, I read some articles about robotics and searched for some news on the subject. (To avoid using the word robotics again which sounds repetitive.) After finishing my research, I looked at some pictures of my friends.

Also note that the verbs 'hear' and 'see' are passive. For deliberate actions it is better to use 'listen (to) and 'watch / look (at)'. -  watch TV / look at my books. 

I hear the noise of the traffic when I am trying to study.  (Passive, not deliberate)

I listen to the radio while I am studying. (Active, deliberate) Note: listen to