Morphine is a Schedule II drug, not only is it illegal for lay people to posses, someone who hasn't even taken a first aid class has no business administering it. Paramedics are the lowest level medical personnel authorized to give morphine and thats with the advice and consent of a licensed physician. Not sure why you need razor blades in a medical kit either.
The kits with bandages, anti-septic, etc are all untrained people are capable of using. You can study first aid on the net in the meantime before you take your first responder course, or whatever you are planning.
You could have some Quik Clot, maybe one or two six inch compression bandages, some 4x4s, scissors, latex gloves, etc, etc. Although if you have no clue what you're doing with them, they aren't much good. Especially alone.
"No free man shall ever be debarred the use of arms."- Thomas Jefferson