the main gear is slightly damaged from my familization with the transmitter. I accidentally pressed IDEl button and the throttle turned maximum. The strange part is that it was fine after that. Now there is a bit of problem. So could you tell me if there is anything wrong other than the main gear?
If I were to replace the main gear I would need help to replace it. Right now, I see about 2 to 4 teeth completely broken off and a little bit left for 3 to 6 teeth. Rest are fine. Is there non-plastic main gear? I am going to buy the spare part before summer and willing to get it flying just fine till April.
There are more videos of the problem but it's not yet being uploaded to youtube. [It's been 3 hours]

I thank you for your prior advices and I appreciate your time and effort to help me better. If you could inspect the videos carefully and tell me what's wrong I'll find that very helpful.