First off, good. Twitter needs to make the lists feature as easy as possible for everyone to use.
Secondly, use Tweetdeck. Seriously. From the article:
As noted, Twitter lists have long been seen as an underrated, underused option, with many people using TweetDeck instead to easily see various listings and stay up to date.
I use Tweetdeck on all of my actual computers, and even on my iPad I hit that website instead of using the Twitter app. There’s simply nothing that makes using multiple accounts like I do, or viewing lists, following hashtags, etc. as easy as Tweetdeck does. It’s absolutely worth using it in a browser.
Now, if only Twitter would bring it back as a stand alone app!