Is there a way i could make my voice stronger?

Is there a way I can make my voice clearer before singing?

• when I'm singing by myself, like in the shower or when I'm home alone, i kinda like how my voice sounds, but when im about to sing in front of people or think about singing in front of people, my voice gets a bit shaky and a tiny bit raspy. is there any way i can help/fix this? like, is there a certain drink recipe or something i could try? (im 15 so nothing with alcohol, lol) please help, this friday im singing BY MYSELF on stage in front of all my friends and 75% of my school (thats a lot of people) and im afraid I'll screw up, and theres nowhere to run cuz there IS no stage, we're performing in the cafeteria. did i mention I'm up first? :(

• Answer:

  Drink lots of water and do some soft vocalized sighs (like start at the top of your range and just kind of sigh down while letting your voice go, also called a siren). Good luck! A lot of what you're experiencing is just nerves, (totally understandable). Good luck!