It can be useful to learn and practice using manual mode. Once you start to get the feel for it, then use one of the priority modes (not just aperture). Even i

It can be useful to learn and practice using manual mode. Once you start to get the feel for it, then use one of the priority modes (not just aperture). Even if aperture priority mode is all professionals use, not everybody will always be taking photos for money. In general, some of the worst advice comes in the form of "you should always ______", especially when suffixed with "because that's what professionals do". Learn the basics, learn what the professionals do, then figure out what works best for you. Most importantly, remember to try weird things and have fun!