Today at school i decided to get high. I bought 4 grams. and a pack of Zig-Zag rolling paper...anyways the weed was all ground up and everything. I rooled niced and tight with a roach on the end. I got to light it and it burns all in one second the whole .5 of it. so im ok it mus be the paper. so i empty out a cigarette and and drop into that i take out the filter put a roach it made sure the joint was full and tight. once again i go to light it up. its burns almost the whole cigarette paper. Can you tell me whats wrong?