Usage patterns
〈事〉はほどほどにするto keep something in moderation
You'd better keep your drinking in moderation.
ほどほどの〈物〉a moderate amount of ~
A moderate amount of exercise is good for your health.
〈動詞〉はほどほどにdo ~ in moderation (often as a mild warning)
Don't play too much—study too, in moderation.