oke an update, i finished the adjustments to the left leg. it wearable now, finally. the problem was the length was super but the it was to small so i added a few side pieces to it and now it fits perfectly.
i also put some foam inside the helmet to keep it steady to my head. and i'm huge with it. i'm 1.93 meter without helmet and almost 2.5 meters when i wear the helmet.