Depends what you mean by ''much''.
Most people who ask these questions have dreams of becoming instant experts or masters…
In open competition, they usually find out there's quite a few talented people between them and a ''C'' rating, in reality.
400 points generally represent the spread.
Now I assume you're somewhere around 1200. That is the beginner rating.
Now you've heard of masters, and people ranked 2000 and so forth, and that may be what you have in mind by good.
Well, basically, you'd have to beat yourself 100% of the time… that is learn enough chess to beat your former self ALL the time, no exceptions… and then start over and learn enough chess to beat THAT PERSON 100% of the time.
That'll get you from 1200 to 2000. You beat who you are right now ALL the time (No exceptions. You know enough to beat who you are now 100 games in a row). And then you beat who you've become 100 percent of the time.
That would make you an ''ordinary'' master.
So sure… get going.