You are certainly not the only one "still learning", fortunately those who post here are very willing to share what they have managed to learn from each other... and maybe a few... err... experiences of their own?
Lots of people seem to think that your Bus round the layout is a first class idea and most like to take the time to add droppers from every / at least most individual pieces of track. It isn't a mega task, particularly if the droppers are soldered to the track before it is laid. {I haven't tried adding droppers after laying the track, but many have. It may be a good idea to see what the options involve, before making that choice.}
Deciding is all part of the fun.