Best of both worlds?

At large hospitals the OR team works 12's. Also try interventional radiology or cath lab at a big hospital

Preop nurses start IVs. I have never once seen a nurse in the OR start one.

You may need to stick it out in medsurg for a bit longer and find a variety of opportunities open to you. Keep practicing on the IV starts. If you stop telling yourself you suck and just try each one with a positive attitude you'll find yourself getting more and more or them.

Some inpatient hospice centers are on 12 hour shifts. It may seem like this is an awful lot like LTC nursing, but it's different because the patients are not there for months or years, only days or possibly hours. The med pass is much less daunting because by the time patients are at end of life, many of their routine maintenance meds such as those for HTN, Type II DM, GERD, etc. have been discontinued and you mainly give comfort meds, and there aren't a lot of them, just basically pain control, anxiety/agitation control, and something for terminal secretions when they are actively dying.

Caring for the dying is not for everyone, but if you don't mind it, it is much more laid back than LTC and definitely much more laid back than rehab! Oh, and most of the families are so thankful and appreciative, as opposed to families wanting to know why Mom wasn't showered yet today (because three aides called off, but of course you can't tell them that) or why she didn't get her noon meds until 1 pm (because two nurses also called off and you had 2x patient load, but again, can't tell them that!)

At large hospitals the OR team works 12's. Also try interventional radiology or cath lab at a big hospital

Not all ORs. We have a variety of different shifts where I work, and I'm at a large hospital. OP, the OR has its own stresses and you can expect at least 6 months of orientation and a at least a year to feel comfortable there.