Once you nail the basics of lighting and composition, it might make sense to use accessories like a compact LED or circle light to enhance the image quality. Getting an inexpensive shutter release remote can enable group photos with yourself included in the frame.  Many mobile apps nowadays allow remote control of the current cameras—including but not limited to changing settings and taking pictures. Lastly, a Speedlight, aka Speedlite, can help illuminate a subject and soften shadows on a bright day. Bounce it off a white ceiling for a softer, more natural look.