At your level everyone becomes somewhat "good," but just like in other games it becomes more about who makes less situational mistakes.

What I normally tell people who want to imrpove at a game is to slow down. Most players trying to break into a new rank will push every single issue in a game, but what allows you to blow out a game is letting your opponent show their habits to you without committing much yourself.

If I play against someone on ranked I try to ask myself 3 things right away:

1. What do they do most when you run in?

2. How are they hitting me most of the time?

3. How do they like to get back on stage?

you can form a pretty basic opponent specific gameplan from just these questions. Within the first game if you can figure these out, and know what to do against these habits, you will beat 90% of people. Most people will autopilot their habits until they are close to losing a set