A noob who wants to get better.

Hello! im a aoe2 player like most you guys in this page. Im a mediocre or barley that. I got almost 400h played (all pvp) but im still pretty bad if im gonna be honest. Im usually playing 3v3 regicid with treat on 25min give or take. Im always one of the lowest score wise in the begging and when im getting attacked right when the treat is over i can barely if ever defende myself. What im asking is if someone more exp than me could coache. How to do better in early so i can atleast defend myself or even maybe the one who starts and attack and have the economy going while doing so. :)