I can see you are rated in the 1200s (rapid) but I'm not exactly sure what you mean by 1600 or 2000 rating, since your stats page shows you've never been rated in the 1300s or higher. I assume you are referring to the chess.com game report estimate of your rating.
This is a statistic which is unreliable and chess.com was thinking about removing it (since it comes across as misleading) and then replacing this with a better estimator when they develop one in the future.
It may speak to your potential for improvement, but even 1200 to 1600 rating is a massive skill difference. I should know. I used to be rated below 1200 and my friend I was trying to win against was 1600s rating. They felt like a Grandmaster to me! What do they miss?
Well, obviously lots of things now that it's years later and I have learned a lot more, but back then, the skill difference of a 1600 compared to 1200 was apparent.
Here's a bit more about my story referenced if you are interested:
Hi,
I’m currently rated 1200 and wanted to ask if a game rating of 1600 is considered a good rating for someone at my level. I’ve achieved game ratings as high as 2000 in a few of my games. What does this indicate about my potential? Does it mean I have the ability to reach a 1600+ rating?
Thank you!