The problem is getting access to marijuana oil. You likely have to grow it. We had a hemp farm in the family so I have access to that as well.
The problem is that is likely illegal to possess so I can’t travel with it.
The oil comes from a process of heating the plant matter to “activate” the weed. Then you “slow cook” in a medium. This medium is usually a coconut or olive oil. The CBD molecules attach to the oil molecules.
That oil can then be used directly, or in cooking.
Alternatively, you can mix the “activated” plant matter with Everclear to create a tincture.
The THC levels in the oil would be dependent on the plant, the activation process, and the type of oil.
Transportation of any pot product across state lines is risky. You must be sure of the rules from one location to the next. 1 Oz in one state is legal. It will get you fined in another.
We Both retired a couple years ago and have considered growing a couple plants.
It is too bad you can’t travel with it, that’s when I find I need some relief from driving long distances and my body hurts and feels locked in upright seated position.