Thank you Gisele for your great question: How to avoid losing my energy in human relationships, at work, with my family and in general?
First, why do you have to deal with toxic people in your life? Maybe it is time to think of a little change in your life circumstances if you can afford it. If you cannot for the moment, plan an exit strategy so when the time is right, you can escape your current situation if it is draining your energy my friend my sister.
More about self awareness in relationships in my book The Knot in the Spiral my friend my sister.