Help with courses

Hi everyone

I'm new to this forum and would really appreciate your help. I currently work for a small business I'm 41 and I do some bookkeeping and payroll. We use sage 50 for accounts and Iris for payroll. I'm struggling a little as I'm not sure what to study. Basically I enter invoices, sales, petty cash, bank reconcile, run vat etc. The accountant taught me how to do these a few years ago. We don't produce invoices as hotel software does this so there are lots of features I don't use and would like to be more confident in those that I do. I've seen some courses on reed that are very cheap Sage 50 course 12& 3 would that be ok for me? I'm not necessarily looking for qualifications I just want to be more confident should I want to apply for other jobs. Also with payroll we use Iris so I run the payroll weekly and do RTI submission etc, also process the pension (ok actually the software does all the calls for me) I was thinking of sage payroll course as this it what most businesses use. At the moment, I feel like I know a bit of this and a bit of that. I don't class myself as a bookkeeper nor a payroll clerk, I just use the software.

Any advice / feedback would be appreciated.

Thank you