It's completely normal to struggle when you're thinking of the next thing to create. 
Always remember that your audience wants value.

Here are 3 tips!

1) Read things that broaden your knowledge. Something that strikes up a conversation and generates interest. Relay those ideas and thoughts to your audience.

2) Share your collective knowledge to others/your audience. From school/work/social activities.

3) Recall and share past/present experiences and future ideas. Everybody shares similar situations, why not share them and build that common interest. Others can learn from your experiences and mistakes,