Text box - input appears in the data input text box all the time

I would say building simulations is rarely easy.

It sounds like you might need to think through the sequence of events. Also, it would help to use some sort of naming convention for your fields rather than relying on the auto-named variables.

Since this is a custom creation, you'll need to create a series of triggers to check for the "correct input" and do something (show feedback layer if wrong, do something else if right.

Here's where you may find it better to split all your individual fields into separate slides - one for each field. Then with each, there is one check for input, feedback given if needed, and advancing to the next slide (or field to the learner as they shouldn't notice they're on a new slide/screen etc.).

I hope that gets you going in the right direction.

Alternatively, you could use Storyline's tools for screencasting and recording for usage in Show Me/Try Me/Test Me situations.