Thank you for your response. I understand what magic can and can't do, when to cast, what reagents work best for certain spells, concentrate and be clear of my intention, believe in magick, myself and what I'm doing.
What I'm unsure on is what type of protection I should use, or if it's needed since the spell I plan to cast is on myself and isn't intended to cause any harm or negativity whatsoever. Although, regardless, it probably is a good idea in any case.
If you or anyone else with experience has further advice or suggestions I would be most grateful.