Just as with any other musical instrument, you can't just start singing opera without first having a solid foundation in theory and technique. This includes learning how to read music, understand vocal anatomy and physiology, and develop good breath control and vocal tone. There are plenty of resources available online and in libraries to help you with this, or you can take voice lessons from a qualified vocal instructor.
Step 2: Listen to and study operas
One of the best ways to learn about opera is to listen to and study as much of it as you can. This will help you to get an understanding of the different styles, genres, and conventions of opera, as well as to develop a taste for the music. There are many different ways to listen to operas, such as going to live performances, watching DVDs, listening to CDs or MP3s, or reading librettos.
Step 3: Practice, practice, practice!
As with any other skill, the only way to get better at singing opera is to practice regularly. This means not only practicing your vocal exercises and technique, but also singing actual opera arias and ensembles. There are many different ways to find practice material, such as online karaoke tracks, sheet music, or recordings of professional opera singers.
Step 4: Perform your music
Once you've reached a certain level of proficiency, it's a good idea to start performing your music in front of others. This will help you to get feedback on your performance and to develop your stage presence. There are many different ways to perform your music, such as giving a recital, singing in a community choir or opera company, or entering a competition.
Step 5: Be patient and persistent
Learning to sing opera takes time and effort, but it is also a very rewarding experience. If you're passionate about singing and you're willing to put in the work, there's no reason why you can't teach yourself to sing opera.