How to Sales Invoice

How Do i create a sales invoice for transactions a customer or a member of a welfare association who does a monthly contribution and whom I’ve received money from but finding it difficult to generate statement for them all because I didn’t use sales invoice. The association isn’t into sales so how do i go about to be able to generate statements for the members. I only use receipts and payment (when they do any withdrawal). I’ve entered a lot of receipts too. Kindly help me out I’m kind of frustrated right now.

Don’t double post your questions - this reduces the chances of getting answers

Thank you very much for your replies, I’m grateful. I’m starting all over again as you indicated. This time using the recurring transaction. But do i track and payment the make and any withdrawals they and also any loans with give them and the when they make payment