Here is the complete list of necessary skills for a self-sufficient lifestyle with a high standard of living:

FOOD:

Agriculture, Permaculture, Aquaponics, Seed saving, Compost, Mushrooms, Foraging, Greenhouse, Irrigation, Soil fertility, Mulching
Animals, Bee Keeping, Fowl, Fish, Hunting, Game management
Storage, Fat, Cheese, Milking, Eggs (candling), Smoking, Salt curing, Drying, Butchery, Oil, Threshing, Hulling, Grinding, Storing, Cellars, Canning, Drying, Brewing
Food Preparation, Fire stove

WATER:

Charcoal filter, Irrigation, Plumbing

SHELTER:

Heat, Structure, Storage, Work Space, Forestry, Water, Terra-forming

TOOLS:

Forging, Sharpen, Quenching/carbon control, Chain/Gear, Tools
Plumbing, Making pipe, Heated water, Fittings, Pressure/pumps
Glass-work, Clay-work, Stonework, Woodwork, Storage
Home-crafts, Soap, Sewing/Knit/Quilt/Leather-work, Predict weather, Bike

COMMUNITY:

Making Money, Taxes, Teaching, Interns, Community events

If I can master these, I think I'm set. I've highlighted the ones I fell I've mastered in yellow, and the ones I feel well acquainted with in green. I think I'm at least passingly familiar with all of them except butchery. Any additional suggestions welcome.