This is a good grown up or serious poem. It seems as though you were trying to depict your entire life here. I liked the rhyme scheme it kind of helps to convey an allege sense of tranquility.
I do think that the “Thru” in the second stanza undermines the seriousness of the piece …. That was a bit annoying.
On the other hand, I admit that I relate to this. I’m the kind of person that tends to be pessimistic thus exacerbate the bad things of every given situation … and I’m saying this due to many times have I craved for disentangling myself from bad experiences so as to recall only the good stuff but my mind works in such a way that negativity tends to overpower me every now and again … I do endeavour to see things differently but is hard ….
I like the last stanza that was terribly moving and telling it kind of describes the feeling I have gotten during those countess sleepless nights in which I muse upon life and everything that is wrong with it.
I apologize if this sounds as I were venting or wallowing in economy size vat of self pity :)