Originally Posted by Songjun

You can use Finale as a beginner to an advanced composer, but the features aren't as good for when you're advanced, or you can use a program like Cubase, but that won't be good for a beginner and only good for someone advanced with all the professional equipment.

What I think is that you should get Finale, and wait and see if you want to choose composing as a career or not, and if you do, then you can get a more advanced program.