I started to learn when I was 17 and took a test and knocked a little old man off his pushbike by accident on the test itself!!
( I only clipped him a little, he was not injured in anyway - I was doing about 5mph ) but of course that was a adamant fail! I was mortified...and never learnt to drive again until I was 25 and passed when I was 26...I had to be persistent and I know it can get really disheartening but persevere and when you pass it will be the making of you.
Looking back at the bike incident now..We can all giggle about the old man all dressed in blue spandex body suit dinging his bell frantically and yelling explitiffs as he fell into a bush...me jumping out the car and asking him if he is ok...him saying yup but I think you may have failed your test - its something from comedy sketch.
I also had a friend who informed me she had passed her test 1st time and I was shocked a week later when I opened my local paper to see a article about a girl who finally passed after 15 attempts with my friends piccy next to it! lol ) So just trying to say that some people take more tests than they let on..and they may say they passed 2nd or 3rd time but for all we really know they could have taken 8 or 9!
Everyone is different...so don't compare yourself to others.
P.S I drive a disco purple fiesta...If you see me coming, your safer to walk on the road than you are the pavement
Good luck! keep going!