How do you get a puppy used to brushing when they run off every time the brush touches them?😅

I just got a 5 month old doodle, and she hattesss being brushed, which is really unfortunate because she needs to get used to it if she doesn’t want to get all matted up. 😅 I’ve tried brushing her while she has a lickmat, but that doesn’t help. I’ve also tried barely touching her with it, as I brush, and she still won’t tolerate it.

Thanks for any tips!!