Lots of good suggestions above , and for the most part they are reading off my list , except for the knife making , they are out of my league there.
Just to go in a different direction , start a garden, though if your spare time is at night , that might be less practical.
A garden provides healthier food, exercise with a purpose,entertainment,relaxation,sanity,less risk of dementia,boost your immune system,feed your kids(and grand kids),weight loss,prolong your life,increase hand coordination and strength,cut risk of Altzheimers by 50%,decrease risk of heart disease,increase your self esteem,save money,stop eating your share of the 5 billion pounds of pesticides placed on our industrial agriculture fields,decreased risk of cancer, improved self reliance,be a more independent human being,better eye hand coordination,learn new skills, feed your local birds, feed your local bees, feed your local rabbits, feed your local deer,feed your other neighbors,cut the trade deficit as I read that we now import more than half our food,tell a liberal that you are green and organic,save the planet,meals taste better,recycle your organic waste into the garden,increase your property value,learn personal responsibility, learn how the world really works,learn about bugs, learn about plant diseases, learn about the plants themselves, learn genetics, and ,to me ,most importantly, learn to love your fellow man ,as you will learn how much work it is to feed you.
It is a protest against the system , done in the most moral fashion.Our system is killing our family farmers.They have the highest suicide rate of any occupation as they struggle against our debt based system. I recently read that the average income for a family farm in 2017 will be negative $1,325.00. The bankers take their land and they kill themselves.The bankers set up huge industrial farms based on monocultures requiring tons of chemicals, we become dependent on their produce.You cannot be independent and free while being dependent on a grocery store!