Roadtrip, you are doing really well.
and the good news is, the more rides you get under your belt, even short rides... the more you will begin to be able to tell what the little problems are.
Just like you noticed how your saddle suddenly felt too low, and you figured out that little problem. The more you ride the more you will sense where the problems are coming from. you may not be able to fix them all yourself, but you will start to have a sense of where the problem is so others can help you fix it.
So great that you are ENJOYING your bike!