What's the most difficult part about generating trade ideas?

Hi I'm new to the forum. I'm curious to know everybody's thoughts on what's the most difficult part of generating a trade idea? maybe current tools good to use, or hard to get the data you need, etc.? Look forward to hearing from everyone!
It has been said that if you want to find a reason to make a trade at any given time, you'll find it if you look hard enough. Unfortunately, it probably won't be a "good" trade if you are looking that intensely. I think the most difficult thing is allowing yourself time and patience to "stalk" a trade - imagining it, seeing it, waiting for the right catalyst, taking action when it's there.
As for me the most difficult thing is to define a trend ans respect your trading plan