Considering you actually made a fairly witty thread for this, you probably give yourself a bit too little credit.

I learned the best way to improve at something like this is to do generally aim high. You'll be surprised at what you can do. Joining a thread that may seem daunting can be the best way to achieve the improvement you want.

This is how I learned to roleplay in another place. I didn't really have an option to do material that was subpar because I was part of something that it wouldn't be acceptable on. You'll be surprised what your true upper limits might be.