Please help :)
Great question. Good advice from Gene.
For me it has been to keep asking "Is this mine?". The clearer I have become in myself (by whatever means) the more I have been able to distinguish between my own emotions and those of others. Usually, the realization that a particular emotion is not mine - and especially whose it is and what it is - is enough for it to melt away.
Unfortunately the mind plays tricks. It's job is to think! It thinks "This body I am in is having an emotion. There must be a reason for that. Here, let me give you this whole list of reasons why this emotion belongs to us." If you are an empath, the mind's first impulse - to think that it owns the emotion - is very often wrong!!
So if you keep asking "Is this mine?", how do you trust the answer, how do you get the answer quickly?
Learning to keep asking the question is the first step. I have found that using a pendulum or using muscle testing have been invaluable for helping get to the answers. But, as Gene says, find what works for you. You are part of a great community here. Keep reaching out to us. and WELCOME!
Recognizing what emotions are mine has been a challenge for me too, but what has helped me the most has been transmuting energy. I say to myself, "If this emotion is not mine, I intend to transmute it into positive pink love light and send it back to where it came from!" If I am in more of a healing mood or the emotion feels more physical to me, I will intend to transmute the energy into positive green healing light instead. While I am stating my intention, I will feel almost butterflies in my heart, that lift through my throat and come out when I exhale - this is how I send away the transmuted energy.
Sometimes, especially with anxiety or anger, it takes me a few tries, but as long as I make myself focus, it always works The hardest part is just maintaining focus, but once you learn how to do it and focus, it is a very helpful tool.
THe other thing that helps me balance out my energy in general is chakra clearing/balancing meditation. Energy work, such as acupuncture and reiki are also good "tune ups":)
Good Luck and Welcome!