Now to be sure that it really is projecting, you'll want to hear a powerful voice wanting to leap out of your closed mouth and furthermore, you should feel a buzzing sensation around the lips--and a tingly feeling at the front of your face. If your voice is weak and you experience none of the above, then this is what's hindering your projection when you sing. How to fix this? Practice humming so that you experience all of the above when you do. Pick any old song and hum that song using, at first, your speech level and work your way up the scales as you hum. The irony is that, if you can't project your voice on speech level when you sing, you'll have a lot of trouble projecting a voice that's not only fuller, but one that's got timber in its vocal.
In summary: voice projection is one of the most common problems untrained singers tend to experience. This little problem could hold you back from achieving your dreams of becoming a better singer. The solution is simple. Hum your way to better projection. Humming is by far one of the quickest ways to focus the voice so that you are projecting it properly and more effectively when you sing. Who wants to listen to a meek, thin, powerless voice that lacks conviction? I know you don't. So why would you allow this simple-to-fix problem hold you back? Hum in your speaking voice and work your way up the scale, and you'll be projecting your voice like a pro when you sing in absolutely no time at all. It's definitely one of the easiest ways to correct this common singing problem.
Here's the truth about singing lessons: they're bullshit! Unless you get the right ones. If you've ever played sports or learned any complicated coordinated motor type skill, you may appreciate how much it sucks to try and UNLEARN an incorrect habit that you picked up from a shitty coach, lack of knowledge, whatever. But the point is, you've TAUGHT that action to your body and it's going to RESIST you as you try to reprogram yourself. Welcome to Suckville, population you.
There's a lot that a very excellent teacher can do to help you improve your singing, while a poor teacher can seriously screw up your voice both in terms of learning bad habits and actual, physical damage can occur to your vocal anatomy if you practice poor habits.
However, I'm going to make a bold statement: learning to sing can't be taught. Not fundamentally. YES, your teacher can point out things you're doing wrong, YES your teacher can suggest a corrective course of action but everything they tell you is also fundamentally inaccurate. Why? Because singing is invisible. Meaning, it's primarily a kinesthetic skill.