Congratulations! You'll find that it gets much easier as you do more and more sets of tires. My very first set of tires (almost ten years ago) was changed by a shop. I've since been doing every other set by hand. It typically takes about an hour at this point to remove both wheels, change tires, and reinstall / adjust the chain.
A useful skill you may want to learn is how to break the bead of a tire with tire irons. Much more useful to those who ride off road, as you don't always have a good way to break a bead on the road.... But also very useful if you have a stubborn bead on an old tire. (Has saved me before.)
https://www.youtube.com/watch?v=NSOFqH3Wk9Y