My second entry, My day

A few comments: I made suggestions to make this sound more natural. There is certainly more than one way to express your daily activities. Regarding time expressions, you would read 6:00 as "six o'clock," but you don't necessarily need to write out the "o'clock" part again. It's like saying it twice. You can write 6:00pm or 6 o'clock or six o'clock or even just 6pm.

My second entry, My day

Hello everybody. I want to tell you what did I do in my day (I want to tell you what I did in my day). I was wake up (woke up) at 8:00 am o'clock, I went make (made/prepared) my Breakfast, then I went a take a shower (I went to take a shower/I took a shower) . and at 11:00 am o´clock I went to my work (I went to work/I went to my job). I had today some meetings in the afternoon. and at 6:00 pm o´clock I arrived in my house.

1) I want to tell you what did I do...  Si decís "What did I do", el orden de las palabras es el que se usa para hacer preguntas. En este caso, What did I do? Qué hice? Al ser una afirmación, lo correcto es decir "what I did in my day".

2) I had today some meetings in the afternoon.... Lo marqué con otro color porque no está mal, se podría mejorar la redacción diciendo "I had some meetings in the afternoon today" o quitar el "today", ya que dado el relato se sabe que fue lo que sucedió en el día.

Espero que te sirva!