Best way is to just start. Even if you feel the output is useless gibberish, and just keep at it for at least short time, maybe 15-30 min if you can. Then take a break and revise the gibberish, you’ll be surprised there will be useful starting points in there, or you’ll think this is all wrong, it should be xyz instead- and there you have it, you’ve started and have a direction to go in.
Best way is to just start. Even if you feel the output is useless gibberish, and just keep at it for at least short time, maybe 15-30 min if you can. Then take a break and revise the gibberish, you’ll be surprised there will be useful starting points in there, or you’ll think this is all wrong, it should be xyz instead- and there you have it, you’ve started and have a direction to go in.