Unless you are trying to lose weight to please yourself, it's going to be tough to keep your motivation level high.

除非你在为了让自己开心而努力减肥，否则要保持驱动力很高将很难。

I am going home-you can please yourself.

我要回家去了。-你请便吧。

You may go or stay, just please yourself.

你可以去可留， 悉听尊便。

Just please yourself with the flavour you like.

喜欢什么口味就选什么口味吧。

Well, please yourself, I don't mind what you do.

好吧，请便，我不介意你所做的。