A couple of things that might be of help if you're new to travel trailers.
You've already noted that you need to stow your awning any time you're away, or if high winds are expected. We tend to risk a little higher winds in my area than is recommended by the awning makers. They say anything over 15 or 20 mph should be reason to fold up; but around here 25 mph is about average. Use good judgement, but be especially cautious if "gusty" conditions are present or expected.
You do need to keep enough "tilt" in the awning so that it will drain. Be careful about keeping the awning high over the door, so that the door doesn't wear a hole in it, and lower the other end (subject to local wind direction, of course).
There is no way to be safe in such trailers (or tents, etc) if a tornado hits; and there's really not much you can do to "protect" the trailer. Get out and go someplace safe. It might be worth noting that on the road many people seem to want to pull off under an overpass for "protection." DON'T PARK THERE. The problem is that the underpass acts as a "funnel," or sort of a "wind tunnel," and winds of 50 mph in the open can be "piped" to 150 mph going through that "slot."
On more mundane subjects, it is very important that you get your trailer level if you have a propane refrigerator. Drains and stuff will work better too, but the main point is that your "camper" refrigerator WILL DIE if it's operated for too long in an unlevel position. Replacement refrigerators are very expensive, with the smallest units around $1K US.
Most RV dealers, and probably most WallyWorld type places, have "foldable" sewer hose support racks (about $10 US) that you can use to support your drain hose so that it doesn't sag and retain the big lumps. It doesn't take much slope to keep the hose running, but there's no way to keep one straight unless it's supported in some way. A short piece of house gutter and a couple of rocks would work, or even just a scrap board - if you can keep the hose from "snaking off" when you flush.
My dealer recommends that you NOT leave the "blackwater" outlet open continuously. Let it accumulate a little, and when the tank is half full go out and "dump." If you keep the tank empty all the time, the "stuff" hardens into something a little more durable than concrete. If you keep it "wet," the stuff stays "flowable." You can leave the "graywater" outlet open, since there's less "hardenable stuff" there.