Angela Watson,46,is one of eight contestants remaining in the programme which aired for its second week on Sunday.
The show, which originally had ten contestants, sees amateur artists compete on a weekly basis with the aim of being crowned overall champion.
Angela discovered a new found love for art following the life-changing injuries in the crash which happened in June 2014 while she was living in Louth.
She explained: “I had never painted before the accident. What happened was absolutely hideous.
“I heard a car coming down the road and I knew it was coming down way too fast but I never thought it would crash into the downstairs bathroom, fling me out of my bath and I ended up going through a ceramic sink and wall.
“Even now, getting into a bath and forcing myself to stay in it, is extremely difficult.
“My daughter, Maisie, was talking to me and left the bathroom about a minute before the car crashed through the wall.”
Angela’s extensive injuries forced her to spend several weeks in hospital.
When she was finally allowed to return home, she was in a wheelchair and was restricted to jigsaw puzzles for entertainment..
She added: “Maisie suggested to try art instead of doing nothing but jigsaw puzzles.”
A friend then suggested Angela ought to apply for the BBC show, but she never thought she would earn a place from hundreds of hopefuls..
She explained: “Filming started last summer. I had only been painting a year at the time and felt out of my depth.
“To get a place on the show was amazing. In a way,it was like winning the lottery. Through the show, I have made some friends for life and my new found love of art has saved my life.”
Angela was very active before the crash, playing hockey, running and riding horses regularly. She has set her sights on doing some of these things again.
She added: “I want to get back on the horse I love and ride again.”
The show will be on BBC 1 again this Sunday at 6pm.