Too easy? Notch them up again, take on harder opponents. If its too hard, notch down the difficulty in the menus. If you aren't feeling confident in your skills, see how you fare against them. In neither case does it drain your health so you can do it over and over as many times as you like.
Every town has an arena where you can fight a number of other bots. Littered across the map there are training fields where you can spar with various difficulties of bots. You won't dry the ire of the factions without good reason. That was a criminal, not a guard, don't worry. I spawned in the first town and was attacked on sight by a guard Very different but lots of new content and very different style of play. I can also afford one of the DLCs right now, which is the best? Have a gander at the rules before posting, though we are always receptive of good new content. If you have any question about anything in game, search the subreddit for an answer, and if you aren't satisfied (/the question hasnt been asked in a while, got no responses, etc) feel free to ask the subreddit. Check out the guides in the sidebar, like the one Ashley posted
