Still learning how to use Excel.

Hi. I have been elected to be treasurer of a condo association. I've been doing same for 5 years now but I feel like I am bumbling about and taking too much time to do what I need. I've had help from other excel users in my family. I'm hoping for independence! My needs and questions are simple, it just seems that the answers I find are difficult for me to understand. I'm afraid to lose workbook data while navigating about to create the new pages for the following fiscal year. My guess is that most registered forum users are doing much more complicated things. I do not make graphs or elaborate graphics for presentations.
I'm hoping an old dog can learn new tricks!