To become a good singer without classes, try to record yourself singing, then listen to the recording to see where you need to improve. Then practice every day, singing in short sessions of 10 minutes with pauses between them so as not to abuse your voice. As with any skill, the more you practice, the more competent you become. Athletes, painters and carpenters practice their chosen craft to become as skilled as possible.
If you want to become an accomplished singer, you need to practice every day. First of all, try to breathe from the abdomen instead of from the chest. Focus on the small spot just below your abdomen. Breathe in and gently contract that little stop to control the emission.
You will notice that a small contraction will help you regulate the air flow. Place one hand on your belly and inhale, trying to raise your hand as you breathe (in other words, breathe “through your tummy”). It now emits an “S” or a “Z”, contracting the small spot that we have already identified. The shrinkage will help you to lengthen the emission.
Remember to practice every day to master these basic techniques. Singing will be much easier and more relaxed. The classes will absolutely help you, and yes, you will almost certainly be accumulating bad habits, but the only way to start learning how to do it is to sing, sing as much as you can and keep singing. Is there a choir in your area that you can join? Any other excuses to sing regularly (like a local karaoke bar)? With this in mind, singing is much more a skill than a talent.
Sure, it takes a combination of talent and hard work to become the next Pavarotti or Adele, but anyone can improve their singing voice with hard work and practice. And while singing lessons are the best way to improve your voice, the Internet has made learning to sing for free easier than ever. The surprising thing is that singing a little louder will give you a much better base for singing across your entire range. The truth is that projecting your way of singing is one of the most important things to master when you are teaching yourself to sing.
Learning to sing only requires more work than learning to sing through private singing lessons or tutorials. If you've always dreamed of being able to sing well at a wedding or family event or are planning to start your career as a solo band or singer, now is the time to do something about it. Now, as you sing through the scale, it's going to be very tempting to “turn around” or get into your falsetto when you sing those high notes. Practice some songs until you master them, or work with a vocal coach and take singing lessons to learn new skills.
However, the human voice continues to evolve throughout life, so singing lessons can benefit students of all ages Learning to sing alone doesn't mean you can't use resources to help you improve your vocal skills and overall singing level. After six or eight months, I don't think you'll lose anything by going to a biweekly singing class (only for a month or two). They may not become the next Callas or Caruso, of course, but with singing lessons and a little ear training, it is possible to improve intonation and vocal output. Practically anyone else can learn to sing with practice, so don't listen to the nonsense that you don't have an innate talent for singing.
The goal of having good posture when singing is to allow your body to not experience any tension and to let the air flow unobstructed while you sing. So, if you can't afford private lessons now, learning to sing online is one of the best ways to start.