Does anyone know of any excersizes that I can use to improve my singing? I need to work on pitch, breath control, tone, etc.?

Breathe in and out slowly.through an open mouth. Do not lift your chess and shoulders. Your abdomen should expand as you inhale deflate as you exhale. For your voice learn the sol fege scale. That's do re mi fa so la ti do. Also vocalize by singing the vowels. If you play the piano progress by half steps. If not get with someone who plays. Also you may be able to find some voice exercises on youtube.