Hi there,
Welcome to the Community. QuickBooks is a powerful program that enables you to get your work done faster. I'll be happy to steer you in the right direction so you can complete the training and certifications for QuickBooks.
I encourage you to check out these helpful tutorials/webinars that you can reference in order to cut the learning curve for QBO. You're more than welcome to ask other questions in the comments below. Feel free to keep me posted on how you make out. I'll be one message away.