I’ve made a lot of changes over my career. I went off to do a Ph.D. (thinking I wanted to be a lecturer like my dad) only to be 6 months in and thought “What have I done? This is totally wrong!”. I persisted, finished my Ph.D. and moved into business. And I’ve made many more jumps since across industries and had a really interesting career. So, to my 20-year-old self I would say chill, it’s okay to be flexible just take it one step at a time. You don’t have to have a 5-10 year plan; it’s okay to change your mind and do something else.
My first job was working for PWC in strategy and consulting for long hours, partners overpromising to clients and you having to work your weekends to deliver. After three years I swore I was never going to have that kind of job again. Because of this, I am very strict about my working hours and when I go home, I don’t check my emails. I think you have to make yourself your first priority, balance is so important.