There are several memory techniques that can help you memorize a long speech:
1. Chunking: Break the speech into smaller chunks or sections and focus on memorizing one section at a time. Once you have memorized each section, link them together to form the complete speech.
2. Visualization: Create visual images in your mind to represent each point or section of the speech. This can help you remember the content more easily.
3. Association: Associate each point or section of the speech with something else that is memorable to you. For example, you could associate a particular point with a color, a sound, or a smell.
4. Repetition: Repeat the speech to yourself over and over again until you can recite it from memory. This can help reinforce the content in your mind.
5. Mnemonics: Use a mnemonic device, such as an acronym or a rhyme, to help you remember the key points of the speech.
6. Practice: Practice delivering the speech out loud, either to yourself or to an audience. This can help you become more comfortable with the content and reinforce the memorization.
Remember that everyone has different learning styles and memory techniques that work best for them. Experiment with different techniques until you find one that works for you. Practice regularly and be patient with yourself, as memorizing a long speech can take time and effort.