Eeman, you’re on the right track with mindfulness. Through this practice we become a fully present witness to our thoughts and experience without judging it. By being mindful, we begin to understand that we are not the thinker but the observer (the witness). This is what I mean by going within, is to go inside yourself and discover who you really are.

The ego is the mind chatter, which is typically in the past, in your case, the thoughts of how your ex hurt you, or they’re in the future, you’re worried that he might hurt you again. The ego is also the thoughts of judgment either to yourself or others, eg. “I’m such a loser” or “She looks fat”. In other words, the ego prevents us from being in the present moment and experiencing life fully. When we are experiencing life in the present moment, we are being who truly are.

Here are some books to consider:

1) The Power of Now or A New Earth, both by Eckhart Tolle

2) Untethered Soul by Michael A. Singer

Good luck

Marina