I raise my own crickets on the farm and grow my own vegetables. It's basically a closed system, I compost everything. I add additional nutrients using seaweed.
How far do your plants have to travel to get to your plate? Last time I checked so-called modern farming uses a lot of petrochemicals. Organic farming isn't any better--they use so much plastic to block weeds and pests.
Also, most plant material I grow is not edible by humans. I cannot eat corn stalks. Maybe you can. It seems wasteful to compost all this biomass as there is still so much nutrition left over.
Sounds to me like your carbon footprint is higher than mine. Maybe you should try to create a farming system yourself. One that yields 100% of the daily nutrition humans require. It is not so easy.
I am glad you are vegan. Much better than eating cows. They drink too much water.