black tourmaline, and clear crystal quartz are good crystals to repel negative energy.

In the morning repeat "I do not allow any negative or harmful energy into my space. I only invite in love"

Choose a piece of jewelry and infuse the intention of protection into it. The evil eye is a great choice because it is a known symbol of protection and good luck. "may all evil eyes turned on you be turned back onto themselves"

take a bath or shower and visualize all toxic and negative energy from yourself and others being washed from your body. Water is a powerful agent!