Experience is definitely a good teacher, and mistakes can teach a lot. If you make the right conclusions. Without experience in any field you will be very difficult. You do not need to give up and go to your goal.
There is no doubt that with experience over the years, you can learn from some of the mistakes you have made in the past and be able to do it better than someone that is just entering that space. There are so many life lessons that experience teaches actually.
However, a lot of people have actually gotten that experience is the best teacher out of context, and they feel if they can just hit at something without learning, with the hope of learning from experience, they will surely get better. You need to at least gain some knowledge about that environment first, how to do some certain things and then from there, you will be able to learn from any mistakes you make thereafter.