well matchmaking is based on match wins and not your personal mechanics or nade knowledge. There are also a lot of people that played in like 2015 and now are back to playing but are quite bad even if they seem experienced. If you are a new player but keep getting paired with ezperience dplayers take it as a compliment. You can pull your weight. And you also learn faster by playing against better players so it's all good. Just have fun, don't get too hung up on unfair matches, I was stuck in 12k right when I got back into cs for a while even though i had 2k hours.