When you get her to go in the crate. Don't put her in the crate. Get her and do something super fun, complete with a treat. Let her go play freely. Do this a few times. Then put her in the crate in a matter of fact, but calm, pleasant demeanor. "okie dokie, time to be a good girl and go to bed." (or whatever cue word (s) you plan to use later on to send her to her crate on her own, which she will learn...but later. I always said, "go to bed." And off they'd go to their crates) Every time you need to put her in the crate do this BUT vary the number of times you get her and have a rewarding time...either a little walk, a game, a special toy that you can use to play with her. 5 repetitions one time, then 3, then 7, then 2, then 9, then 4, then don't put her in the crate at all...be unpredictable so she doesn't know when or even IF she's going to go in the crate. Don't put her in the crate every time you go get her. Do something fun. Act the same way, the same pleasant demeanor going to get her whether it's to put her in the crate or if it's to play a special game, give a special treat, toy, walkies, a ride in the car, etc.
With a lot of things I too like to avoid force if at all possible. But under the circumstances, she being a puppy and needing to be in the crate sometimes, even an adult who may need to travel in the car safely or stay all night at a vet ought to learn to adapt and accept being in a crate. So if all the nice things you've been doing to get her to accept the crate aren't working, it's that time where I'd say you need to just put her in and she'll have to adapt. Don't cave when she protests. Don't give attention when she's protesting. (speak, look at, coo, nothing) Wait for maybe 10 seconds of quiet and calm, then let her out if it's time to let her out. She will protest for some time now because she's learned that it works. If you give in, she will have a much harder time learning to accept and it is actually unkind (even though you, of course wouldn't mean it) because it's confusing to her. Consistency is everything in training a pup. Eventually, probably in a couple weeks of perfect consistency and good management, (don't over do the crate...no more than 4 hours at a time ...max) she should get so she's okay with it and not make a big drama about it.
Be sure to not do everything the same way preceding getting her to put her in the crate. In other words, don't get her, put her in the crate first thing or you'll see her avoiding you when you come near. Get her, trick her. Do something unexpected and vary those things a lot. Make it fun, cheerful but matter of fact.
Ps. I don't think it's really adolecsent rebellion because I don't think dogs think that way exactly. I think it's simply that she's immature and still learning the ropes. She has more training to get under her belt and the more training she gets, the more she'll learn HOW to learn. She'll get onto it. But you may have to be a little more insistent and she can have something to chew on or taste if you're around to supervise but if you're gone, I wouldn't....too much risk. She can also learn that she doesn't always have to have something in there to eat, chew. But it can help her ease into this at first. But I wouldn't leave her with anything if you're gone and can't supervise. Puppies choke on things, break off pieces that you think they won't be able to.