Let's be clear, we don't all have the same goals. There are those who just want to learn to ride to get around, and those who want to become the next Vincent Milou. No problem.
On the other hand, whatever the objective, and whatever the discipline, organizing a training plan always helps to progress.
But what is a training plan?
The first thing to do is to determine what your immediate goals are. And when you're first starting out, it can be a few things.
Rodney's example...
Let's imagine for example that Rodney wants to progress quickly in skateboarding. He has two main goals: to be comfortable on his board and to learn the ollie. In this case, Rodney's training plan will focus on these two points, and his sessions will be mainly oriented towards that. Mostly because there will always be a part of the plan dedicated to fun: you should never forget to have fun.
If Rodney has 1 hour a day to skate, we could say that he will spend 30 minutes just riding, 15 minutes to improve his ollie and 15 minutes to do what he wants.
... to be adapted according to the level and the desires
Then, it is necessary to modulate its training program according to its level, and especially of its desires. If you only want to do park, maybe devote a part of your time to dropping the ramp, another to taking the Rail and always keep a little training at Ollie until you master the gesture at 100%