急！講野鼻音好重呀，點算

我係一個16歲既男仔。

1）我細細個已經講野好重鼻音，而家變左聲之後鼻音仲重左，點算呀？我講野一緊張鼻音就更加重。有陣時好多人都聽唔明我講野。我唔想成世都係咁呀。唔該幫幫我吖！

2）我細個把聲好好聽，唱choir係唱solo part.但係變左聲一年半啦，把聲都係好難聽（難聽到我都無知點形容）。雖然我而家都有唱choir，但係我feel到個music director只係想我我既perfect pitch去make sure個choir冇走音。=( 有咩方法可以令把聲變得好聽d？

3）究竟有咩練習可以幫到我呀？我summer之前都唔會睇到醫生架啦，所以希望你地可以諗到其他方法幫我~

Please help me! I don't care if you answer in Chinese or English. I just wanna get a good answer so that this situation can be improved. Thanks a billion!