It takes a few days to get breastfeeding established, luckily nature has provided babies with the ability to manage until the milk comes in properly.
Breast milk, especially at first, can spurt so much that there is overflow. Try spilling some milk & see how far it goes, she's probably not bringing back as much as you fear.
It really does look more alarming than it is!
Personally, I have to say it was the most worthwhile thing I did, worth working through a little soreness at first to reach the fun bit - food on tap, cuddly times with my baby, knowing I was doing the best thing for my baby while losing my pregnancy weight at the same time!
Hang in there girl, babies are tougher than they look, congratulations on your new arrival.