Closing the modules has nothing to do with bank rec.  They are two unrelated processes. I would close all the modules by month until the current open period is this month. I would leave the GL current open month as January 2019 so you can correct any issues you find. Then work on correcting bank rec.

Closing the modules has nothing to do with bank rec.  They are two unrelated processes. I would close all the modules by month until the current open period is this month. I would leave the GL current open month as January 2019 so you can correct any issues you find. Then work on correcting bank rec.

So I can move forward reconciling and then go back and close up the periods?

Yes.  Knowledgebase Article 18015 has tips for reconciling Bank Rec to General Ledger. 

Thank you!!!!