Packing for camping

Yes,

I always feel my bag is over packed with diabetic gear mostly food and water. It has actually been keeping me from trying a backpacking trip because I can’t figure out how to carry everything I will need. I usually car camp and go on hikes from my campsite to try and help keep all my supplies. Has anybody been able to pack for a backpacking trip? Any tips? I am starting to plan a small one for this fall.