Hi Jordan, I'm an independent adviser and can help.
There are a couple of ways to do this.
First, pressing Ctrl+G will get you into the VBE (Visual Basic Environment) Which is where the VBA code can be reviewed, debugged and modified.
Second, Most Access code is event driven. This means its tied to events, like clicking on a control or updating a value. If you open a form in Design mode, select a control and open the Properties dialog, you will see an Events tab. In that tab are various events that can be triggered. If there is code behind an event it will be indicated there. You can then press the ellipses to view the specific code snippet.
Third, Code modules that are not event driven are listed in the Navigation Pane and can be accessed by right clicking and selecting Design mode.
Also, Access has two programming modes. Besides VBA, there is a marco language. Macros are also listed in Nav Pane..
If you need any further help with this feel free to ask.