About 5 years ago we were coming out of the childcare years (pre school childcare) and recognised we wanted more from our lifestyles. The two critical things that turned things around for us were 1) me side stepping into a more lucrative career 2) us moving to a cheaper area.
I spent my 20s in my dream sector, a job I always wanted to do but doesn't pay very well, I got to £30k, I might have been able to get to £50k but probably decades later, the senior roles were dead man's shoes. So I looked at my skillset and qualifications and identified a career path that was tangentially related to mine, enough that I could make a side step rather than dropping down and starting again, but a field that is better paid and a bit more 'corporate', I then did some further professional qualifications with that new employer, got my face around, did some networking. Within 2 years of that jump I was on £50k, and 2 years after that £70k. (Changing jobs both times, another bit of advice, you have to be very proactive, seek out the experience and roles, be willing to change them if you can) I could likely be looking at 6 figures by the time I am 40, if I go to the private sector (but that's not my goal right now tbh, I have a very attractive pension and flexible working set up that offsets the compromised monthly pay).
The other really critical thing we did was move area. We lived away from family anyway so it wasn't quite the issue of leaving support networks etc. The house we ended up buying literally cost £150,000 more in the area we were in previously (new build so easy to compare) we moved just 20 miles away! The area is very practical for us, good schools, has everything we need, it just isn't a fashionable postcode. So we have our "dream" house, that does everything we need (new build, low maintenance, important for me as we don't have a lot of savings behind us so doing work to something would always be a challenge for us) but at the fraction of the cost it would have cost in our other area.
I should just add DH has done well in his career too, just not quite so drastically, he probably earns £10k more than he did back when we decided to re-evaluate our lives 5 years ago by getting promoted, his job tends to come with other perks that help us.
Not sure if that helps, my advice would be don't be afraid to look at it quite strategically and be a little materialistic, I have no shame in setting myself financial goals, these things don't tend to just happen short of getting a windfall, so you have to quite proactively review the areas of your life you can work on.