+1 on all the advice the girls here have given.

I have one primary riding partner, my Husband, so our riding styles don't always mesh. Some days he's stronger then I am, but you know what, there are days where I kick his butt so I'm not going to bury myself to try and keep up. On days where I'm not feeling especially strong I'll ask to take the lead and set the pace. I'm slower up hills as I'm overweight and it takes more to get myself up and over the top, but I still get there, plus I have a welcoming party of one cheering me on at the top!

Enjoy your bike and take a basics course so you know how to change a flat and adjust your seat.

Shanon