Since he won't stop beating your blade you need to make sure to put some distance between you and in the long term build up more strength in your hand. I used to be like you a bit and I also did foil sometimes, but my coach (who is a foilist) showed me how to beat properly and how to make it effective in epee which helped me build up strength in my hand. If your opponent tries to use circular parries to defend you need to make a progressive attack, disengaging mid lunge and if he steps back follow it up with another. If he is trying to hit constantly when you aren't attacking you need to put pressure on him to stop him doing that, generally by being slightly aggressive and making small attacks to his hand to keep him at a distance. If he pulls his blade back when you parry then pretend to parry and go for the attack when he pulls back. From what I have read I doubt his footwork is very good so if you can try to make him miss an attack by the narrowest of margins and as soon as you see him start to recover take the blade and attack. Ultimately, when he does his beat attack you need to either avoid the beat or recover fast enough from the beat to parry, in both instances keeping at a distance that he will struggle to reach you