加油可以说成'keep going'或者'don't give up'，这两个短语都非常鼓舞人心。而beautiful可以用'amazing'或者'wonderful'来形容，这两个词都能够表达出美好、令人惊叹的意思。因此，我们可以用以下的句子来表达加油很美好：

'Keep going, my friend. You are amazing and capable of achieving great things. Don't give up, and remember that every step you take is a wonderful accomplishment.'