I am in my 7th year of teaching full time and I am not sure it ever gets easier. I have gotten better at knowing what I can let slide, though.
Teaching is my second career. I think the thing about teaching that is so hard for non-teachers to understand (and I certainly didn't understand this) is that you need to be ON and ready to go the minute the kids walk through the door, and there is often little sacred prep time during the school day. Many of my preps end up being meetings. Most parents have 9-5 schedules so I communicate with them before 8 am or after 8 pm. Teaching has no real hours. The other piece that I didn't really understand is that no matter how great of a teacher you are, the opportunities for a salary payoff are nil. If I were a doctor or attorney, my hard work and willingness to go above and beyond might result in a bonus or a raise, or a promotion. That doesn't happen to teachers. I make only slightly more (maybe $2000 more) than I did when I started, and I am at the top of my salary potential because of my level of education. My salary will never really allow me to throw money at things like childcare or weekly housecleaners or take-out. All that said, I love my job so I make it work.
Things I have done to preserve my sanity (with marginal success):
-I have stopped responding to emails after school unless it is an issue that existed and was being worked on throughout the day. So, unless it is an emergency, the parent who emails me a question at 5 pm has to wait until the next day. Ditto to staff members (again, unless it's an emergency).
-I started a class Instagram account and post pictures daily but I do NOT send out whole class communications about everyday things like what we are up to in language arts. If you want to know what's happening in my classroom, you have to join the 21st century and get an Instagram account. While this is an adjustment for some parents, they end up loving it because I post a LOT of photos.
-I use Teachers Pay Teachers for things like morning work - every day my kids start with a challenging multistep math problem. They get a week's worth at a time, and keep it in their binder. I photocopy a month's worth of morning work at a time, so I dedicate zero mental energy to this part of my day. (happy to share some of my fav sellers there)
-I have a Super Teacher Worksheets subscription - worth every penny for HW.
-Sometimes I will post things about my personal life on our Instagram acct. - not confidential stuff, but a photo of my kids doing their HW and the caption, "Wow! Algebra II is no joke!" - this helps my families remember that I have a family, too. It connects us, and also helps them be a little more understanding if it takes me longer to respond to an email. I truly believe that having a family makes me a BETTER teacher.
-I have housecleaners once every two weeks. I started this at the end of last year. It's $125 every two weeks and totally worth it even though we give up other things to do it.
-We have breakfast for dinner a LOT.
-I never eat lunch in the teacher's lounge. I work through lunch every day.
-Sometimes a five minute phone conversation will be better than an endless string of emails, especially if the conversation starts with, "I have to pick up the kids from art at 1 pm, but wanted to touch base."
Having been in the same grade level at the same school for 7 years (and living in district and having kids of my own) has given me a good deal of credibility and I won't lie - that helps. I have many students that are my second or third sibling from the same family and that helps, too. I am very lucky in that respect because I can cut to the chase because the families know me well.
This job is MUCH harder than people realize. Hang in there. You are not crazy for thinking it's hard.