Well...one thing is that with small-sensor digicams, MUCH wider apertures work better than "s-slr" sized f/stops...with the small sensor, and small pixels on a digicam, even wide f/stops like f/2.8 can produce ample DOF< and are not plagued with diffraction. Same with f/4....f/4 will have plenty of DOF on that size a sensor at the wider-angle end. So....the Programmed AUTO mode wil tend toward faster speeds, and wider apertures than it would on say, a Canon 6, or 80D.
I dunno...one of the biggest "secrets" is keeping the shutter speed fast enough to stop motion of the camera, and the subject.
I see noting wrong with Programmed, Aperture-priority, or whatever. Use an automatic mode, and look at the Histogram, and add or subtract exposure to get the right exposure.
ISO? The lowest ISO has the best image quality, and is best in BRIGHT light. ISO 200 or 250 or even ISO 400 might be good enough, especially in bright, even, flat light, like on overcast days, or gray days. Higher ISO levels are at their worst in bad lighting...if it is daylight, and the sun is out behind clouds, maybe elevate the ISO a bit if needed. AGAINm though: the digicam and smart phone can shoot at f/2.8 and have ample depth of field, but if the subject is moving runners, or running dogs, or so on, you might want to move from lowest ISO up, one, or even two whole values, to get the shutter speed needed to get a SHARP image.
For close-ups, a tripod can be helpful, to keep things steady.
Biggest advice: learn to use the Histogram, and the "blinkies" to know ehen you are underm dead-on, and also over-exposed. BEWARE setting exposure based on the rear LCD screen, until you know for certain how high the brightness level needs to be to gauge the LCD screen against the Histogram, and the computer.