How the fuck am I supposed to do this job for the next 20 years?

I have read countless threads on this subreddit asking advice on how to be a good teacher, and it seems like the answer is always to put your heart and soul into it- even when working at home, making yourself accessible to the students during the evenings and weekends, sacrificing your weekends and breaks, etc. etc. <br><br>I had my first year as a full-time teacher last year. I received excellent reviews, my students loved me, the parents loved me, and I genuinely loved and cared for every single one of my students. But I was absolutely fucking miserable.<br><br>I did exactly what all of the YouTube videos and Reddit threads told me to do and put my heart and soul into it. I spent 75% of my weekends and breaks in class prepping, and the other 25% of that time working from home. I made myself accessible to my students 24/7 and was always available to call/text whenever they had a question. I never took lunch and instead used that time to grade or help kids. I spent hours preparing activities and lessons for the students, and most of the time they would watch a video for 15 minutes and try to play games on their phones for the rest of the time. I just genuinely don’t see how people who have been doing this for years continue to do this when they have their own kids, husbands, etc. I’m single and childless and it put me in a severe depression that I have had to work all summer to get out of.