Haven't cycled in 15+ years. Just wanted some reassurance

I'm renting a hybrid bike this weekend, before I put down money on an actual one.

I've been doing a deep dive on cycling the last month or so, even going through cycling subreddits and hybrid seems the bike for me. I'll be using it in my local town, as well as using it to travel to other towns/cities.

My main concern comes with that it's been so long, I feel like I've forgotten how to ride. I went to a cycle shop and sitting on a bike for measurements felt daunting. Am I just getting in my own head?

I was a very active cycler growing up. Hell, I used to cycle with no hands but but it's been so long. Will I be OK? 😅