Previously worked 60 hour weeks – starting a new job tomorrow that’s 35 hours / week. Those who experienced a significant decrease in work hours, what was the experience like?

I 26F am starting a new job tomorrow. I've had two previous full time jobs and worked about 60 hours per week in both – I got so burnt out and depressed that I decided to take a pay cut for a new job where I'll be working 35 hours per week. I start the job tomorrow. I'm having new job anxiety sunday scaries and am trying to calm myself down. Can those of you who had a similar experience tell me about your hopefully positive experience with working less hours?