I oil it and grease the action every time I can. I have a 2 inch grouping at 100 yards (pretty good for a 13 year old.) and I can load the mag in 4 seconds. I try my best to run it like a pro.
Those are good achievements with the mosin no matter how you look at it. I commend you for training hard with what you have. If you are 13 years old, you have a lot of growing to do and no doubt will be just fine.