As the Nike saying goes, "JUST DO IT!"
I am a junior (third level) in an LPN program. I am having no problems academically but am admittedly nervous when "performing" in practicums and clinicals. However, I just performed my first trach suctioning and trach cannula change the other day and once I did it, I was SO proud of myself. Today,I took a test in IV calculations and got a 93--not bad for someone who has been out of school for 25 years and has definite math anxiety.
I waited literally YEARS before finally going to nursing school
. Graduation will be fulfillment of a dream for me that has been nearly lifelong. My advice to you is to take the plunge. You must have the desire or you wouldn't have posted to the message board. Nursing needs people who are self-motivated to the profession--not ones who are dragged there kicking and screaming. (i.e., "my parents want me to do it... my husband wants me to do it, blah, blah, blah..."). Do it for you and do it for your potential future patients.
It has been hard work but I don't regret it for a minute. Any nurse will tell you that they had (and still have) anxieties. No one is perfect. No one knows it all.
Good luck to you and God bless.