Lately, I've been driven to write, but find myself having an increasingly difficult time finding ideas. I wrote a story called, "I Stumbled Across a Feeding Ground in the Forest". It was narrated on YouTube, and one comment says that they'd like to see a sequel. Since I've been lacking ideas, should I start on a sequel?
If you feel inspired to write a sequel, then that's what you should do. Always follow your inspiration.
What I find is most helpful is just to start writing and see what happens. Freewrite whatever comes to mind, even if it's complete bullshit nonsense. Like I'll sit at my computer and just type a completely random string of words as they come to me. It's a great warmup and can sort of clear out those blockages.
Another thing I like to do is go to a random noun generator online and have it give me a word. Then I set a timer for five minutes and write a (very) short story based on that word. If I have something I like at the end of five minutes, I can then go back and develop it.
There are also lots of great resources and YouTube videos about idea generation. Any or all of thse are great paths to go down. The sky is really the limit. :-)