please do give some tips for my tomorrows interview

I am not in the technical field, but thought I would respond with a couple of ideas. For one, practice the questions that you think they might ask so that you can respond quickly. Just like you are rehearsing lines for a commercial. That way you don't have too many uh's and pauses in your responses. This is very important. Also, one of the common interview questions is "Which animal would you most consider yourself to be like? dolphin, dog, cat, or lion." The correct answer is the dolphin, because they can go with the flow, but they can also lead if necessary. When asked to tell them about yourself, they aren't really asking you a personal question. They really want to know about your work habits and work ethics. And the other question, "What are your worst qualities?" Even if you know something negative about yourself, don't divulge it to them. Let them find out for themselves. If you insist on having an answer, make it something that you can turn around as a positive.

I am no engineer so I have no tip for the questions you might be anticipating. But you must get a good night's rest. Wake up happy tomorrow and prepare yourself for questions that can be answered by your own experiences. If not, say I am sorry. Honesty is the best policy.