I think its really cool that you have already been able to make your own spreadsheets!
I think you will find that the objects available don't change that quickly. It's more of a slow progression week after week, of a few new objects moving into the prime observing time, and a few slowly moving out. This is one of the reasons it makes sense to plan one night at a time. Other than moonlight, next week isn't going to be all that different.
Think of observing with your telescope as a four step process:
1. Find objects that you are interested in. Some people really love planetary nebulae, others enjoy comets, etc. As someone starting out, your best bet is to try a little of everything. I suggest finding a good handbook. In the northern hemisphere the Messier objects are a great place to start. Or if you don't mind going old-school, find an old copy of Burnish's Burnham's Celestial Handbooks and use the volume for this time of year. As you master the software, you should create a custom list of objects that catch your eye somehow: perhaps you read an article or saw an HST image or something. When you go out to observe, put this list into the Nightly Planner to see which ones are available that night. There is no reason you can't plan from multiple lists.
2. Load an observing list into the Nightly Planner that includes the objects that you are going after, maybe from the handbook, e.g. the Messier list, or the appropriate Burnham's lists. Get Observing Lists --> Browse Skyhound --> select the Handbooks folder.
3. Set the next night you are likely going to observe on the planner. Not every object is going to be appropriate for your location and telescope. An object may never rise from your latitude, or it may be too faint to see in your telescope from your usual location. So the next step is to filter those out. In SkyTools, this is combined with the last step:
4. Set your Quality and Difficulty filters. I recommend: Best Quality Only and Visible (at any Difficulty). This will remove all of the objects from the list that you don't want to look at on that night, leaving a list of objects that you will get a good view of and are appropriate for your telescope/location. This calculation uses algorithms that take everything into account, including the type, size/magnitude of the object, the amount of light pollution, moonlight, your latitude, time of year, telescope optics, eyepieces, and even your own eye. This makes it easy. Each of the remaining objects will have a time they will be available to view that night. One thing you could do is to click on the top of the Best column to sort it in order. Then view each object near its best time.
If you control your telescope mount with SkyTools you can use a different approach. You can also use the Real Time tools to plan while you are out at the telescope. These tools will recommend objects from your lists that are available right at that moment.
Keep an eye on out tutorials, as I will be adding news ones soon:
https://www.youtube.com/playlist?list=PL...73IGuOhTwA