I feel like (clause)

You use "I feel like ___" to express your opinions. When you state your opinions this way, it sounds more personal than when you say "I think ___":

I feel like kids these days don't have the same sense of respect that they used to when I was growing up.

You can also use "I feel like ___" when you're not quite sure of something. For example, if you lost your credit card:

I feel like I might have left it at the bar I went to the other night.

I feel like (clause)

Use "feel ___" with adjectives to describe how you feel:

I feel hungry.

I feel sorry about what happened.

But if you want to describe how you feel with a full sentence, use "feel like ___":

I feel like I'm the only one who cares about doing things the right way.

I feel like you're hiding something from me.

(someone) is stuck in a rut

The word "rut" means a hole that's long and thin, like the hole that a wheel leaves when it rolls through mud.

"Rut" is most often used in the phrase "stuck in a rut". Being "stuck in a rut" means that you keep doing the same boring thing each day. It sounds depressing. Use this expression if you feel like someone's life is boring.

You're stuck in a rut. You need to get out more and try something new.

You can also use "stuck in a rut" to describe your relationship with someone like your spouse, boyfriend, girlfriend, etc. In this situation, it means that you don't do interesting things together any more.