Scylla,
What the heck is wrong with you?
None of what you detailed qualifies as bad. It may have made you feel bad to have to do them, but you had to do them.
Any endeavor worth undertaking involves sacrifice, hard decisions, and decisive action. You want to run a farm? You may have to shoot stray animals who might endanger your livestock or family. Be glad you had the resolve, the equipment, and the knowledge to handle it as well as you did. Be really glad that the first person to encounter the dog wasn’t your daughter.
If you manage people, some of them will occasionally have to be fired. If you hadn’t fired them, what would have happened? Would they have hung on, costing the company money, not doing their jobs? I long for managers who know how to evaluate employees accurately, and reward those who do well, but get rid of the dead weight. It sounds like you were doing your job, well.
The relatives? Anyone who tries to take money from people who can’t defend it themselves is contemptible. Maybe you could have been more diplomatic, but at least now you know how far you can trust these people.
And the Amish kid? Maybe he’ll get a clue and not mess with the crazy guy’s farm anymore.
Seems to me that you’re a good man, Scylla. Good men are the ones who take on the tough jobs, and do them well. They’re the ones who can see that sometimes, you have to do something that feels bad to make good things happen.
My advice? Do some things that make you feel good. Do something great for your wife; no explanation, no reason, just surprise her with something she likes. Play with your daughter for an hour or two. Remind yourself why it is that sometimes, you’re the one who has to make the tough choices.