Hi,
I wanted a Ford Fiesta - and I wanted the Zetec S (the most sporty version of that Mk). The cars was around £2.5k, the insurance (I didn't want a box...) was around £3k. OUCH. I started by working part time while at sixth form in 2017, I worked so many hours at £4.20, i was getting around £250 a month. I saved up at least £100 a month. It sounds little, it was, but the beauty happened over time. Then a day before pay day, I added the spare cash in to my savings account, I did some photography sessions and a few of my images was sold, it all counts. I did dog walking (that went towards my lessons), in June 2018, I passed my test. I was at approx £1,900. No where near... I then increased my hours of minimum 20 hours a week, I saved up as much as possible. I then got my car at £2,295 out right in August 2018. I pay for my insurance at £235 monthly.
The key it patience and every little helps - as Tesco says! Now, to afford things etc, I'll put money aside - eg, loose change, because all them pennies add up eventually!!