Trying to make sense of growing up?

I (22f) in the last 6 months have moved out of my mom’s house, gotten engaged, and gotten a “real” adult job. I am pretty content with my life, but go through phases where I feel like I should drop everything and move back in with my mom, and go back to “normal”. I’m going through one of those right now, and I’m really just looking for any advice someone more experienced in life might have for me. Does everyone have these feelings sometimes? I feel like I should be excited to have my own life, and I usually am, but when I go through these phases it’s difficult to get out of the headspace.