Sure, I can help with that. Here are some steps to ensure your playlist plays in the correct order:

1. Open your music app and go to the playlist you want to play in a specific order.

2. Look for a button or option that says "Sort" or "Order". This is usually found at the top or bottom of your playlist. The location can vary depending on the app you're using.

3. Click on this button and you should see different options for sorting your playlist, such as by name, by artist, by date added, or by custom order.

4. If you want to set a custom order, you can usually do this by dragging and dropping the songs in the order you want them to play. Again, the exact method can vary depending on the app.

5. Once you've set the order, the playlist should play in that order the next time you start it.

If you're using a specific app and these steps don't work, let me know and I can provide more detailed instructions.