Hello there, Angel. Welcome to SoM. I can see that you are a person that willing to make sacrifices to help and save people. What I would suggest is to learn the basics before you go into casting spells.
The Moon Phases (Certain spells work best at night.)
Casting/Uncasting a Circle
Your Altar (Needed for casting a Circle)
Tools for the Altar (Wand, Athame)
Book of Shadows (Journal)
Runes (Used in Spells.)
The Elements (Spirit, Earth, Air, Fire, and Water.)
Energies of the Five Elements (I can help you with this.)
Knowing the Spell types:
White Magick (Good)
Black Magick/Blood Magick (Bad)
Elemental Spells (Depends)
If you need more help, feel free to message me!