use that feint button. Parry the dodge attack and go ham. Seriously you are in such a favorable possition with LB. Much more HP, more damage, hyperarmor on shove, unblockable mix up and a freaking 400 ms light to interupt everything that the other player can throw often even on reaction.
Seems to me you are just being led the entire fights if you cannot touch your opponents. Suggestion is as above, try to go from feint into other attacks as well, that should interrupt any suprises. Be more unpredictable. Use OOL combat mix up your options there. Always look forward to counter the counter attack. Time to pay attention to what the opponent does when.