I think you should. You cannot quantify how well you know a programming language X. I have come across such questions in many interviews, and I was like "How can I say - how I rate myself in Java in scale of 1 - 10?". I now avoid that question diplomatically. Some interviewers say, the gauge your confidence level with that but you take that as it is. Like if you tell me I rate myself 3 in C and you wow me with a perfect binary tree traversal algorithm code. I give a st about you the score "3" you are a good programmer to me.

Anyway, you apply to the companies and land yourself a job. You will learn a lot once you start working on something.

Very best for your job search.