As something who is older and more experienced, and has been in a huge variety of financial circumstances, my advice would be to not take any notice of others, or make comparisons, but concentrate on making the best of your circumstances, as everyone's finances and priorities are different.
If you're used to living frugally, hopefully you'll know you can do this within reason and still have a nice lifestyle, ie you'll know what you value and what you don't, also how to get things cheaper by shopping around, using deals, taking your own food and drink rather than buying while out, being wary about committing to expensive 'lifestyle' choices like cars on finance, endless grooming and beauty treatments, high end gym memberships, lots of travel that's not properly budgeted for etc etc. So keep doing that.
The financial flowchart can help you get your thoughts in order and the Meaningful Money podcast discussed this in detail in one of it's seasons (plus the rest of the back catalogue/new content is excellent for managing your finances
https://ukpersonal.finance/flowchart/
https://meaningfulmoney.tv/category/podcast/season-25-finance-os/
Also the Moneysaving Expert weekly email and advice on anything is also really useful.
But as far as your house/kids/marriage plans go, I would think carefully before spending a lot on a wedding, tens of thousands on a single giant party is potentially not a very wise use of money.
Don't necessarily stretch yourself with what house you can afford, as things could get difficult when you're in 'the childcare years' and you're having to pay for a big mortgage and childcare fees, possibly on a reduced part time income.
And also, spend less than you earn and try to save a decent amount each month (above money you'd need to put aside for variations in spending on things like insurance, car costs, holidays, Christmas etc) as it will give you so much peace of mind and security if later you lose an income or need/want to make big changes like moving house/starting a business.