Free advice from someone who was been observing American politics for several decades: you are not obligated to watch the State of the Union address. If there is any actual news in it, you'll hear about it pretty quickly afterwards. But they generally do not contain much actual news, even when delivered by better speechmakers than Donald Trump. And these speeches are some of the dullest, most plodding things to experience live on God's green earth.
If you are getting paid to watch it, by all means do so. But otherwise, you shouldn't feel bad if you have something better to do with your time.