ask ourselves that question some time In our lives. "How much should I blame myself?"
Introspection is not an easy road. I think that you have tried hard to give us a picture of what most of us feel when life hands us lemons. We can't always make lemonade. if you don't like lemons, it's alright to throw them away. But, don't buy anymore! I'm not too sure of this new style of rhyme or even if it is a new style, but it keeps the pace and that is ok by me! Keep it up and you will be able to connect even better with the reader. ~ Gee.
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OK, if this is based on fact, I am sorry for you but should point out that there should never be any reason to change. You should be able to accept each other for what you are. Now for the poem. Where you choose to use rhyme you should also choose rhythm. The two go together like bacon and eggs. The first two verses here demonstrate that you are capable of writing within the said constraint. So you should eventually end up with something along these lines.

Life is not fair
We have heard it before
Take the good with the bad
Even if it leaves you sad

Grey clouds hang loosely
Weeping for what is lost
Only they know that this pain
Certainly has no gain

There are no winners here

I am not perfect
Nor did I pretend to be
If he knew how I tried
or the tears that I cried.

An inevitable end
Not the choice I would make
Yet it happened just the same
I was unprepared when it came

Questions without answer
Had I done more to change
Would it turn out the same
Am I really to blame?