It tough, but definitely do-able to teach her not to jump. I say it's tough b/c it IS natural for puppies to do this. Wolf pups jump on their parents and packmates in the wild same as puppies jump on their mom and humans domestically. This activity is hardwired into their brains.
So with that understanding in mind, you simply have to show her that that behavior gains her NOTHING. Being that she is a doberman, and simply THE most intelligent breed there is, she'll pick up on it
Just try this although it may seem like it interferes with day to day life. Keep her on a leash when she is with you as much as possible. If you are watching TV, answering the door, walking around the house etc.... Every time Holly is relaxed and not jumping, praise her. Not wild hyper praise, just Good girl. When she jumps on you, you "can" pinch her toes (gently just for mild discomfort), or you can chose to ignore the negative behavior and as soon as she gets back on four feet, reward. It will take a while, b/c as soon as you reward her, her natural reaction will be to jump up on you again. But STICK with it, and she'll eventually piece the reward system together. Make up mock visitors with your friends after you explain to them how to react to her and when to acknowledge her, that is ONLY when she is relaxed and firmly on the ground.
The key is the reward when she is relaxed and on her four feet for her to figure it out and stay with the new behavior. Remember anything that works and works RIGHT for the dog isn't going to be a quick fix, so be patient and most importantly consistent.
Also make sure she is getting plenty of exercise and work, at that age, their brains are like sponges waiting to absorb! It's easy to get bored, and she has to learn to deal with it and settle, but it helps if they get to play and get the "edge" taken off. Also consider giving her something indestructible that she can have during "TV time" in the evening when she is being a pest. Whether it be a Kong filled with treats or a bone ( preferably NOT greenies or rawhides, even if you aren't comfortable giving her a raw soup bone, you can always boil it first)
Good luck,
Jess