Hi cookie. I was a learner for (err) a very long time but I can remember how intimidated & nervous I felt approaching my bike school for the first time.
Believe me any bike school worth its salt loves having grown up lady riders coming along cos they listen to what they're being told, and they will do their best to encourage you to develop at your own pace. A decent school enjoys seeing us succeed
But first you have to take the step and contact them to book either a taster session or CBT
And if you contact or try a school and you don't feel you're getting on, then try another. Like I said I was learning on and off for years and I've had loads of instructors - vast majority were brilliant, but not all were. I bet there's quite a few to choose from in Blackpool.
Good luck and enjoy, cos there's so much fun in front of you if you go for it