The left side of the glands of my genitals are very red and attached to the foreskin

You are blessed with an erogenous, highly-innervated foreskin. Many unforeskinned guys would envy your foreskin. You display great wisdom in wanting to avoid circumcision. Do not be worried. You are normal for your age.

Baby boys are born with the inner layer of the foreskin fused with the surface of the underlying glans penis. This is natural, normal, and protects against infection. Over some years, the fusion spontaneously disintegrates and releases the inner foreskin. This usually happens prior to puberty, but not always.

It is not uncommon in adolescence to have the inner layer of the foreskin still fused to the glans penis. It is not a serious problem.

Apparently, your foreskin has not yet released, although it probably is about ready to release due to your age. You can try peeling the foreskin away from the glans penis to see if you can break the remaining fusion. Do it carefully and little by little. It may take you several tries to get it all.

When you tear the foreskin away, the head will be red in color, where the separation occurred, for a while. Put some Vaseline under your foreskin to prevent it from re-adhering to the head.

You may also try "ballooning" your foreskin by pinching the tip shut when you pee and causing the foreskin to fill with pee. That will lift the foreskin away from the head and tear loose the fusion.

If you can’t get it to separate by pulling on it, a urologist can help you. It is called “lysing”. Don’t let anyone sell you a circumcision. It is not necessary and extremely harmful.

I'm 25, I never used to have this problem when I was in my early teens. My forsaking used to retract full then. But then due to masterbation my foreskin kept splitting hence the Phosmosis but not sure as to why this would re attach itself to the glands

That sounds very unusual. You may need to return to your surgeon for followup.

I don't understand why he wouldn't seperate the foreskin from the glands and go through the full procedure. Apparently I will be getting a copy of the notes the sergeon made during the operation. The only good thing at the moment is that I am not in a relationship I just hope when I go back in about 6 weeks for a follow up that we can come to some agreement where then I can have the full op to restore some normality.

So I have had my letter from the hospital, apparently the sergeon tried to dissect the inner layer of the foreskin away from the glands but is quite inherent in some places. I'm hoping my GP will be able to provide some insight

Circumcision operations usually have negative results. You are not alone.