I want to take a shower first, but I'm too hungry and can't bear it any longer.
I'm starving and I can't wait any more. I have to eat.
ご質問ありがとうございます。
① "I want to take a shower first,"＝「先にシャワーを浴びたい」
"but I'm too hungry and can't bear it any longer."＝「でも、お腹がすき過ぎて、もう我慢できない。」
② "I'm starving and I can't wait any more."＝「もうペコペコでこれ以上待てない。」
"I have to eat."＝「食べなければ。」
ご参考までに。
アメリカ合衆国 
