I am actually that person also, which rented for years, I had children early and did everything back to front, so I know its possible.
Me and my partner, didn't go to uni until we were 23. This was hard, as we had a child and was renting, we gave up our spare bedroom, to a family member in exchange for some money towards the rent.
After we finished uni, I sat there one day and pondered buying a home and realised just how much the odds were stacked against us.
I started to look into our family and seen plenty of opportunities, which people term "social value". We moved back in with my partners mother, whom had very little rent off us, as long as we covered all utility Bill's etc, over 24 months.
The house was a mess, seriously hole in the roof, no central heating, totally inefficient. Stunk because she used to have a dog...
We then both worked 45 hour weeks and established an online ecommerce business. I still get flash backs of packing 100 parcels aday.
This business made us 25k over 2 years, after starting with 3k. We ended up with 35k by putting aside work cash and living frugally.
Obviously moving back helped, but the business, extra hours, sacrifice and being frugal were the key factors. If we didn't move back, it would of just taken an extra year.
We then bought that house off her mother, she moved out with her partner. Within 3 1/2 years that house went up in value by 30%, the area is well placed for first time buyers. We understood that buying there (ex council house), on the edge of a very wealthy area would lead to a greater increases, in the price over the years and it did.
We gutted the house, while living in it, new electrics, gas heating, plastering. It was a mess and such a struggle, I remember waking up with a dust filled mouth.
However it's the best decision and sacrifice we ever made and we've achieved a current LTV of 50%, it's crazy when I think about it.
However most my age, my friends, just wont put themselves through the pain. They rather buy coke on a weekend, a BMW and pretend they've made it big in life, while living at home with mom a dad.
2 more years, the 5 years fix ends, with abit more left to do, we should pull nearly 70-100k out of the house.
Then we will look for somthing much nicer, all that sacrifice, hurt at the time. However when we get that beautiful house, I know it will feel even better and the house we have now is pretty decent and modern also.
It was all worth the pain and has given us such a decent standard of living also, the mortgage is much cheaper than renting. Considering rents have gone up nearly 20% in our area, it's really is worth the pain.