If I try early aggression, he scouts and builds enough sunkens at natural while he builds up.
If I try to leave base, he has mass hydra split into three groups and he just attacks from three sides simultaneously.
If I try to tech too fast, he attack moves a billion hydras into natural and wins.
If I keep a sufficient defense at my natural, hoping to push out later, he just mass expands and when I finally do come out, there's a billion more hydras.
If I try to keep my original squads alive to monitor expansions, he just runs around (hydras are damn faster than my M&M) until he has a surround, then attacks from multiple sides.
Any engagement between M&M and hydra where he will lose, he fast runs away and preserves units. But any engagement where I will lose, I can't retreat as fast as pursuing hydras.
What the fuck do I do?