A trainer is definitely your best bet.
Ideal would be a trainer who trains her AND you. So, the trainer gets the horse started well, and shows you how to handle her and so you can practice, too with the help of your trainer.
If you don't have the option of being there every day of training, at least go once a week to see the progress AND to get some hands on experience as well.
I wouldn't recommend simply sending her away and waiting til you get her back to start working with her. You need to know what's going on, and how to handle her,...it's a process. So, the more training you get alongside your horse, the better you both will be.