Hello Boo and welcome to HW. I'm sorry you have gotten this diagnosis, but I do hope the Enbril gives you relief. I have used both the pen and syringe and the dosage is the same, so I'm sure you can use whichever you like and switch modes with your pharmacy if you decide you want to. My insurance requires me to use a mail order company.
Here is my take on pen vs syringe:
I found myself struggling with the stupid button on the pen and when I finally got it to release the needle, the urge to yank back when it hit flesh had me concerned I would at some point be unable resist the urge, and end up throwing away the medication. However, if the image of the needle freaks you out, the pen may be good. Also, I have dropped the syringe and had the needle break off and had to throw away the dose. Don't know if the pen protects that from happening.
There are several other reasons I like using a syringe: less bulky and less plastic waste. You can inject at the rate you like, and at an angle, which I find helps it be less painful. Sometimes it burns more going in than others. I don't know why, but if it is a burner, I want to go slow.
With either, giving the medication time to warm to room temperature most definitely makes it less painful as it is going in, so leave it out to warm up for an hour or so prior. It won't go bad in that amount of time.
After years of injecting I stumbled across a video about the process and was surprised that there were things I could learn. Go to Enbril web site and watch it before your first injection. And above all, try to not put too much thought into it and freak yourself out. Soon the hassle of remembering to order it on time and give yourself the injection will be a bigger ordeal, not to mention annual renewals of prescription and insurance authorizations and payment assistance program renewal. I keep telling myself that insulin dependant diabetics do it every day, and I only have to do it once in a week.
Best wishes! Let us know how you are doing. A lot of knowledge and collective experience here. Also, my email is open if you want, by clicking on the colored envelope on left hand side.