I have taken Andrew Ng's courses on DeepLearning.AI and I highly recommend them if you are interested in quickly building LLM-based apps.

I suggest taking them in the following order:

- https://www.deeplearning.ai/short-courses/chatgpt-prompt-eng...

- https://www.deeplearning.ai/short-courses/building-systems-w...

- https://www.deeplearning.ai/short-courses/langchain-for-llm-...

Note: although I only have basic Python skills, I am still able to follow these courses