How to handle hyper dog?

I’m struggling big time. We have a 6 month old unknown breed boy. He is a nightmare no matter what I do! I redirect which just makes him even more excited and bitey, we try ignoring which again makes him even more excited and tries biting. I can’t even walk to another room without him attacking me (not angry attacking), if I ignore it and hold in my pain so I don’t make noise he still keeps going! I can’t even sit on the couch! We will sit on the couch and he will have his favorite toys and bones but no, he wants to try and jump ontop of me and bite my arms then tries humping my arm. I’ll push him off and ignore when he does that but every time he gets more aggressive with it and I’m just not sure what to do anymore! He will even chase my cats and try to bite them. Any help is appreciated! He gets plenty of play and outdoor time he just never calms down