For starters, don’t pick her up. You’ll only make her fear you. Bunnies don’t enjoy being off the ground as the are prey animals. She’s brand new, let her settle in and come to you. Don’t overwhelm her with so much attention. Just sit on the floor with her at her level. Don’t bring her up anywhere. Sit on the floor and read a book, play a game, watch a movie, play on your phone, but just ignore her and let her come to you. Interact with her at her level. Pet her if she allows, but if not don’t force it. Some bunnies can take time to open up. Also, make sure other things are out of her reach, cough drops can be dangerous, especially with her young age and developing gut.
As for diet, 1/2 cup of pellets is good for 2 months, a lot of places say unlimited pellets until 6 months, but you want to make sure she’s eating the majority of her diet as hay. A good thing to do would be feed her 1/4 cup in the morning and another 1/4 cup 12 hours later, that way she’ll be forced to eat hay. Until she’s 6 months old she should be on alfalfa based pellets. Don’t feed veggies until she’s 12 weeks old, and introduce them very slowly, one at a time over the course of a few days and monitor her poops. Until she’s put on weight, just give her 1 cup when she’s fine with veggies. She should never have runny poops. Cecals and runny poops are very different. Runny poops need a vet check. Fruit can be introduced at 6 months when her gut is able to better digest them, again introduce them very slowly. Fruit should be given sparingly 1-2 times a week and no more than a tablespoon. Most buns find a water bowl much easier to drink out of, so it might be a good idea to switch her to one instead.
Welcome to bunnyhood 