i cant join in new player lobby... whats is a problem???

The new player lobby is meant for beginners (or players who are new to the game). Experienced players who aren't quite skilled are still to move to the MS lobby instead. You seem to have played quite a few games in the beginners and inter ladders and have been on Voobly for several years now. I think it's time for you to move on to the MS lobby now.

That would mean you will be bashed by more experience players, its better to stay in the noob pond and be a shark than getting eaten by whales in the ocean.

You are right for you as the shark of the pond its a treat, but what about the little fishes in that pond we are trying to protect?