It sounds like your throat is closed while you sing and you're pushing air through your vocal chords without allowing the sound to resonate. \n\nOne little trick that will help a lot. When you sing, physically try to open up the back of your throat. It takes a bit off practise but it really improves the timber and warmth of your voice. To know what it physically feels like try this... Yawn....notice how the fleshy part at the back of the roof of you mouth goes up? That's how it should be while you sing...especially for sounds where you tend to naturally close your throat like 'eeeeeee' or 'ooooooo'.\n\nBefore trying to go for 'Volume', let yourself feel the vibrations of sound in your mouth. Your mouth is like a natural 'speaker box'. If you feel the vibrations at the back of the throat, you're closing your throat...open up until you feel the sound vibrating on the roof of your mouth.\nAnd of course....breath from the diaphragm meaning use that huge muscle under your lungs to control your breathe. When you breathe in, your belly should expand and that muscle should be used to control the exhalation of breathe.\n\nMake an effort to enunciate clearly, especially the final consonants of words...and extra especially at the end of long drawn out words which end with a consonant. It will help improve the clarity and tempo of your performance and will generally help make your performance more polished and 'tight'. Good luck! \n\nMost importantly, don't just sing the words and the notes. Sing the SONG. If you do not have a personal connection with the song, everytime you sing it... you're just trying to get through it... and in that...there is no music.