How can I make a WiFi extender/access point using wifi only, I do not have Ethernet but do have a WiFi dongle to use. Note: I do not have Ethernet for my pi. If there is a solution please tell me how I can do this.
What you need is a wifi repeater that creates an access point and simultaneously connect as client to another remote access point. You can do it with the on-board wifi device without needing a second wifi dongle because it supports both modes at the same time. How to setup it you can look at Access point as WiFi repeater, optional with bridge.