I'm appreciate if you chech my writing.
I’m not a woman. I’m a lusty young man.
My daily routine starts by working out at gyms. (I begin my day by working out at gyms.) Thanks to this behavior (Therefore), I could develop strength to stay up all night.
As an extension of (As a continuation of) it, I walked ‘Camino de Santiago’ which is an about 900km route in northern Spain, enduring sunlight of summer and geothermal heat of asphalt. For the 33 days, I walked with heavy backpack weighing 10kg and it led to a lot of blister on my foot. However, I didn’t give up with responsibility for my challenge and finished.
Although it was a challenge for my hobby, these mental patience and physical strength could be a good stepping stone for carrying out my internship.
I will do my internship as a passionate young man, not a woman.
parenthesis is more natural? or not?
And I will appreciate if you check the whole texts.