Okay maybe I should grow up

好吧，或许我可以成熟一些

grow up向上生长； 长大； 成熟；出现

例句：

In its natural habitat, the hibiscus will grow up to 25ft.

在原生境中，木槿能长到25英尺高。

All plants like to grow up toward the sunlight.

所有的植物都喜欢朝着阳光向上长.

You could even put a trellis on your walls and train plants to growup it.

你甚至可以在墙上搭置棚架，让植物攀缘其上。

And I wish my mind could keep up

我希望我这脑袋能跟上

keep up vi.不减弱， （天气）持续不变；保持； 保养； （使）不倒下 保持不衰退

例句：

If homeowners can't keep up the payments, they face foreclosure.

业主如果未能按时交房贷，就会面临丧失抵押品赎回权的危险。

If you don't keep up payments you could be evicted.

如果不继续交费，你会被赶出去。

He lengthened his stride to keep up with her.

他迈大步追上她。

Sometimes I just wanna give up

有时我就想放弃罢

give up放弃； 投降； 把…让给；戒除

例句：

When life gets hard and you want to give up, remember that lifeis full of ups and downs, and without the downs, the ups would mean nothing.

当生活很艰难，你想要放弃的时候，请记住，生活充满了起起落落，如果没有低谷，那站在高处也失去了意义。

They'll have to give up completely on certain of theirstudies.

他们将不得不彻底放弃某些研究。

His wife would love him to give up his job.

他妻子很乐意他辞去工作。