My legs are so much shorter than average American guys. And I realised that the bike doesn't have a brake after I started pedalling!
Luckily I ran into my house mate and she taught me how to ride the bike. It's called beach bike and it's got a foot brake (which I haven't even heard of).
After 10 minutes practice, I went to the grocery store and got my food! It felt sooooo good! The quest with this beach bike thingy made my one-mile travel so much fun!
I hurt my crotch but I did it!