My parents did not help me out one bit. I inherited from my Grandfather a long time after I had a foot on the property ladder.
The only advantages I may have had is I always had free (ish) digs whilst in the forces and NO kids to support.
It can be done, I have done it. I do not have a buisness management degree nor any inside information.
One thing is true though, the more money you have, the more you make.
Your future is a long long time. If needs be live in a camper van for 6 months. That is nothing compared to a lifetime of relative prosperity and never having to worry. I can assure you I have lived in worse places!!!!
It can be done, and small sacrifices have to be made. Rome wasn't built in a day and a rolling stone gathers no moss.
Look after the pennies and the pounds will take care of themselves.
I do not know where you live, but here in Sussex there are streets and streets and villages absolutely crammed packed with houses worth well over half a million. Are all these people doctors, dentists, lawyers, company directors, film stars, footballers etc etc. NO, they are hard-working people who with a sound mind have moved quickly up the ladder!!!!