I had no experience in the medical field before beginning nursing school & was also worried about being able to do the technical stuff, but that's what school is for. You'll be walked through all the procedures on paper, then you get to practice on a nice little dummy

, then when you try it for the first time on a person, your instructor will be right there beside you. You may not be perfect at first, or even after a few tries, but that's okay! The more you do a task, the easier it gets.
As for what areas of nursing may or may not be boring...sometimes you'll be surprised. I had ideas in my head when I started about what areas I thought I would love & hate, and it all changed once I did clinical rotations in those areas. Thought I would love OB/L&D (since I have four kids & spent a lot of time in this area--haha!), but I did not enjoy it in the slightest. I thought I would hate our psychiatric nursing rotation & was terrified of doing it, but it turned out to be my favorite clinical time. I also discovered an unknown affinity for cardiac nursing. Who knew?!
Nursing is a great field & there are so many options...best of luck to you & hope you join the ranks soon!
Dana