We feel/felt the same @Regretss - we moved from a medium flat to a largeish house last summer.
Previously our mortgage was £1,900, council tax £120, utilities around £180 per month.
Now our mortgage is £3,300, council tax £300, and utilities £300 per month.
Our incomes have remained the same.
But all of our costs have increased.
And we no longer have a bulk of savings (as a large proportion was used on the down payment for this house).
But I echo what a previous poster says, about it feeling like a stretch at first, and then getting used to it.
I'm getting used to having carpet I hate on the stairs, and knowing we need to replace the boiler before we replace the carpet.
BUT I am so grateful, we have a proper garden, we have enough space (even enough to host guests), and having been cooped up in a flat for 12 years, this is the lap of luxury (not withstanding the family bathroom which is carpeted, as it has been since approx. 1989).