I'm really sorry, that is utterly shit.
This might sound odd, why must you focus on the positives? I only ask that because my counsellor asked me and it changed the way I think, and treat myself.
I lost dd2 at 22 weeks, we had a tfmr, she had T18. The grief at times has been unbearable. I was forever giving myself a talking to, telling myself I should be grateful for dd1, I have a loving dh, family, friends etc.
At the end of the day telling yourself you should be feeling something your not is being cruel to yourself.
You have had 5mcs, all before the age of 25. That is totally shit. It's horrid that you should be dealing with that. You are grieving all your babies that should have been. Please allow yourself to cry and be angry and anxious. You are allowed to be.
I'm sorry if this doesn't help. I'm, now, just a firm believer in allowing yourself to feel whatever it is you feel and not beating yourself up about it.
Can you do anything as a memorial to your babies? Plant a tree or plant in the garden?