I really like this, it's well written. I like how your start out the first 5 stanzas with "I can feel it from within", I feel like in a way it gives a sort of rhythm to this poem.

I lost myself awhile back,
I'm not sure where I went,
all I know is I'm not coming back,
so for now I've given up fighting for that.

^This entire poem is really relate-able for me, especially this stanza. I know what it feels like to lose who you are. I personally think that you should never search for who you lost, but rather reinvent yourself, become who you are meant to be, not who you were.

A little critique: In the 7th stanza, you misspelled Lying.

But this is a great poem, I look forward to reading more of your work. Oh and welcome to PNQ (: