Recitation and Listening to the Quraan

Reciting the Qur'an even though one does not understand Arabic

Q: I am 18 years old and my father forces me to read Quran online for 1.5 hours every week at set times. I am busy in my studies so this is an annoyance to me and I think it's unnecessary because I have already finished the Quran and sill don't know it's meaning because I've never read it in English and I am reading it in Arabic again. Is this wrong of my father to force me into this? Is it minor shirk? 

Improving one's recitation of the Qur'an

Q: I am slowly learning tajweed and when I read the Qur'aan, I feel that where I need to pull the word for a few seconds and I don't pull long enough, or pull too long then I feel that I have to reread the word, or if I don't recite a word properly with tajweed or if I feel that I didn't read a word with tajweed then I have to reread the word. Sometime I feel that it is Shaytaan that is trying to confuse me and frustrate me. So I wanted to know that if I don't pull a word for the correct time or if I don't read a word with the correct tajweed then is it necessary to reread the word?