I'm starting a new job in just over a month. They were quite keen (but not pushy) for me to start on a particular date. With my notice period at current job, this means I will finish my old job on a Tuesday and start the new one on the Wednesday. It's a similar kind of job so I thought it would be ok but the closer it gets the more I think I'd be absolutely bonkers to do this. Even in a similar role it's a new job and will be exhausting.
I'd like to ask to delay my start date until the following week so I can have at least a weekend in between. It's a case of starting 3 working days later. Is it unprofessional to agree to a start date and then ask to delay it or is it fine and not a big deal?
And yes, I do overthink things a lot.