Try again.

today I went to the gym with my father [first time in our apartment?]. before going there, I was worried about my father's action. because I couldn't expect what he does would do. as I was expected, my father was disappeared when I was running on the machine. And I stopped running and went out for looking for him. he was strolling here and there when I saw him at the lobby. then I came back to the running machine and kept running. after we finished work-out on the way home, his face has very satisfactory seemed very satisfied with something I don't know. I think my father is still juvenail juvenile. In fact, when everytime he does something new, he becomes very arrogant that is very proud of himself and selfishness.

(Whoever see this, please correct sentences)