Is this sonnet in iambic pentameter? I can’t be with you, not another night
Even nothing makes something more than you
My freedom, leaving you, my only light
A window, glass, with no way to come through
The way I had felt towards you was great
You kept losing me, now I must be free
But it could not work out, it was not fate
Now I'm going to leave you and be me
Your lies and convictions, now I am lost
The truth told, I have already felt pain
Must get rid of you, whatever the cost
Your grip ahold of me, an evil chain
Now your actions have forced myself aware
Since I can’t seem to force myself to care

If only part of is, could you help me correct it?