In todays world, I find it very positive that even a young person like you, Jordan, thinks about making a will. In a way, it shows you care of those left behind.
You say your life is a bit complicated. My recommendation is to choose an executor outside the family, especially when you told us the three families involved don't get along very well. You can then choose the easy way, not telling this to your family, only mentioning your reasons in the will, or you can choose the harder but more honest way and tell your father and uncle.
That's how I have done it. My brothers took it first as an insult when I told that I let my lawyer take care of executing my will, if and when it's my turn to finally use the open one way ticket to the downstairs I've had waiting sometime already
. I had not told them earlier but last fall lying in hospital after a stroke, I thought it was time to tell. I told it honestly, that I had to choose an outsider; my two sons are living in my native Finland, where the law protects them, giving them automatically half of what I leave behind because I still have a Finnish passport (in Finland, if you have spouse and / or children, you can give only half away in will; the other half is divided equally to spouse and children). But, I leave in Germany with a German wife, and different inheritance laws. She should also get something. We have no children but we have very dear godchildren who I also would like to help, to get a good education and a nice start for an independent, adult life.
So it is a situation where you have to find a balance between your feelings, your loyalty and the reality. The best thing you can do is to assure that whatever happens, your will is executed as you wanted it to be executed, without unnecessary rivalry between different people or families. That's why I think that an executor should always be an outsider, with nothing to gain but fee.