Energy and vibes are real, and sometimes you just need to cleanse the vibe.
White sage is an ancient practice often used for healing and energy clearing and even to protect spaces. Burning sage is one of the oldest and purest methods of cleansing people or spaces. White sage or "smudging" helps to establish a positive environment and rid negativity and negative energies from others.
White sage can also be used while meditating.. be sure to set your intentions and meditate.
Don't forget to lift a window or open the door after cleansing to allow any and all negativity OUT.