DB question

My teacher has pointed out that I "bounce" my bow on the strings when
playing, something she tells me is quite common when starting out.

She suggests practicing by slowing down the bowing action, are there
any other tips on how to gradually correct this? Also, I find that if
I use my index finger to "hook" the bow, I seem to have more control,
is this counterproductive in the long run? I use a French bow.

Much appreciated