Wheels on Fire

I got a bike. It is not a new bike. In fact, from what I can tell from the interwebs, it is a circa 1980 road bike. It looks like this:

That is not the actual bike. I found that on the Google. So you can't really see, but the shifters are on the frame, rather than on the handles.

Weird right? Okay, so I have to admit, I don't know anything much about bicycles. I think the last bike I had was the kind with the tassels on the handlebars that you pushed the pedals backwards in order to brake. It may have even had a banana seat. But I have rented or borrowed a few grown up bikes and have ridden a bit, even in the city. I know, I am a big girl now. However, I have never had a bike with the shifters on the frame.
Since I have a bike now, I decided to get prepared. I have a helmet and a bike lock of course. I also got a patch kit, a tube and a really cool 19-in-1 tool that I have absolutely no idea how to use. It looks really fun though. I also got a red blinky light for the back,  another blinky light for the front AND just for fun, some LED lights you put in the tire valve and it makes fun colors or shapes when you ride.

I bet you are wondering if I am planning to ride the bike or just buy ridiculous accessories for it. I am strongly considering the latter. No, I am kidding. I actually rode it once. A whole mile and a half, in the dark, to go and drop off my library book. I didn't fall or get run over, so that's a start. However, there is a very big hill between my house and the library and I had to walk the bike up it because (a) I couldn't lean down to shift the gears, pedal AND hold the handlebars at the same time very well, and (b) My legs were like jello.
It seems we have our work cut out for us.
*title inspired by this song
What have you had to learn/relearn as an adult? Was it hard? Do you ride a bike?