if you haven't already, I recommend trying the openai playground instead of chatgpt. It is the same underlying ai (i.e. gpt4), but you have much more control over the inputs.

Bonus 1: Since you pay per token, it's much cheaper than a chatgpt abo

Bonus 2: You can increase the context window dramatically (iirc 8000 being the max for playground, while 2000 is the max for chatgpt)