If you need some help, ask politely for it.

如果你需要帮助，礼貌地说出来。

youdao

Surely you need some help with so much work.

这么些活儿，得有个人帮帮你吧？

《新英汉大辞典》

Connie: That's good. You need some help.

康妮：这很好，你需要有人帮忙。

youdao

I need some motivation and I think you can help me.

我需要有人能够激励我，而且我觉得你能帮上忙。

Why don't 实战 - SpeakingMax英语口语达人

If you need some help, there are plenty of resources to guide you.

FORBES: Can Patients Make Good Decisions?

Let me know if you need some help solving that unemployment problem.

FORBES: Idealistic Capitalism vs. Idealistic Socialism

Well, you know what, do you need some help?

WHITEHOUSE: The White House