What should I tell

When you want to tell someone that the thing that suits you the most and you are not master at it? e.g. you love physics and you live with it everyday and you are not master at it yet.

Even English is what I like. I'm not even good at it.

or

Even English is what I'm good at. I'm not even perfect at it.

I don't think my English is that fabulous but the context is limited.