So this is going to sound harsh but I don't mean it to...the other moms gave GREAT advice.
What IDIOT told you to bottlefeed instead of breastfeeding because of jaudice??? That is absolutely NOT TRUE! Feed more often, yes; put in the sun, yes; switch how you feed, NO. Ridiculous!
At this point you baby has become a lazy eater. She doesn't want to work for her food because the bottle nipple just lets the formula spill into her mouth.
STOP the bottle...If you want to continue breastfeeding.
Think of it this way. When she's older, are you going to allow her to have cookies and ice cream because she likes it more or are you going to insist she have veggies and fruits? It's kinda the same (I'm NOT saying formula is like cookies and candy--though no matter how we try, we cannot yet create anything as well as God or nature). The more you give her the formula, the less she'll want to work for her food...the less YOU will benenfit from breastfeeding and the less benefit she'll gain from it, too...the majority of which cannot be supplimented by formula due to physiology.
Take a day to lounge with her in bed topless allowing her to find your nipple at her desire, hold her skin to skin the whole time.
Be sure you're drinking a large amount of water and eating well.
Also, avoid waiting for her to cry for food or delaying her when she begins rooting to increase your success with breastfeeding.
Remember, SHE'S just learning this, too. So the two of you are a team in learning and creating a system. It'll be that way with each child you may have.
You're just beginning, there is Lots of time to establish a GREAT breastfeeding relationship. I know you're tired and overwhelmed but don't give this up without a fight, NOTHING compares to it.
Also, when contacting a lactation consultant, if you get the feeling that the counselor is more interested in the baby nursing than getting breastmilk, remember that the counselor is thinking of BOTH of you. The benefits of breastfeeding are not one way. Due to all the hormones involved with you and your baby it's a double focus which is why it can feel one-sided to some who talk to lactation specialists...they're wanting you to fight for yourself AND you baby, not one or the other.
That being said, YES, it's your choice...and thank goodness we have something far better than cows milk for infants now. If you change to formula it should be because of free and clear CHOICE not because of being STUCK into a situation due to misinformation and/or frustration.
Tune in real close to your baby, tap into your new mommy magic, and you'll do fabulously.