You can say . मुझे मदद की ज़रूरत है l or मुझे मदत करो l or मेरी मदद कीजिए!

Hello, I'm an Indian native HIndi speaker. I would love to help you improve your fluency and develop your communication skills in Hindi so that you can reach your goal. I am willing to meet your needs and help you in every possible way. Feel free to message me back and check out my profile. Cheers:)