There are lots of examples of women who became actresses later in life. It can happen to anyone, at anytime. Think of all the teenage/early 20s actresses & actors who wash up after 30 and then you never hear about them again. Very few have longevity. Some examples of people who got into acting or became successful late in life:
Marion Lorne - didn't become famous until she was in her late 70s-80s!
Julie Child - became a TV star with her cooking show at 51
Robin Chase - founded Zipcar after her 40th birthday, while she was at home taking care of her children
Vera Wang - started her idea for a design company at age 40 (after being a figure skater & a fashion editor)
Joy Behar - launched a show business career after age 40, after having been a high school teacher
JK Rowling - developed the Harry Potter series, while on welfare, going thru a divorce, & needed to support her family - her books were turned into movies
Alan Rickman - prior to age 28, had never acted in any films
Other late life success examples:
Diana Nyad - after the 5th attempt, successfully swam from Cuba to Florida in 53 hours at age 64
Laura Ingalls Wilder - wrote the Little House series, first one came out when she was 65
Martha Stewart - prior to age 35, had no home decorating experience
I could go on, but you get the idea. You are never too old to follow your dreams. Now, go out and make your mark on the world!
It's the concept of the late bloomer, or the polymath. Society has been fixated upon youth for a long time now, but I think that still comes from collective beliefs we have about vitality. You can do more and achieve more, and be more alluring and positive when younger, because beliefs say that we decline as we get older. That includes both body, mind and mindset. But these are still beliefs we have, rather than how reality actually is. If your beliefs are outside of this norm, then the Universe will find a place for you within the industry.
As with any industry, you will get recruited, hired and cast if the agents and producers think that you are going to be of use. I don't mean this cynically either, because anyone can be of use at any age if they believe. Use your thoughts to get your beliefs outside of the societal norm, and give producers etc a vibration to latch onto.
You need to believe deep down that you are TRULY GOOD ENOUGH, and that you are a GREAT ACTRESS. If you believe this deep down, you will then attract situations and circumstances in which you really ARE good enough, and a great actress. Producers will pick up on this vibration and act accordingly. Paths will open for your big break in the industry, and the people who believe that it's so hard to get into, will just stay on the outside.
Prepare yourself an elevator pitch. When a recruiter asks you the question " tell me about yourself, " they don't want to know about your stamp collection or your West Highland doggies; they want to know about your employable qualities, so how would you answer this question? What makes you a great actress? Can you think of 5-10 replies to this question, and put them into affirmations. Write them down as affirmations, and go over them a few times a day so that you know the answer off by heart. You will also start to believe THOSE as thoughts, and send them out as vibrations as well.
The more you believe in your acting talents, the better you will become. Demanding scenes such as tears, difficult conversations, or ones requiring swift mood changes, will become easy for you: because you ARE a great actress. The Universe will be giving you what you believe. Your range will expand, and roles will open up to you.
You will also attract EVERYTHING YOU NEED to become a great actress. The Universe will provide you with the right agents, tutors, mentors and so on, as well as put you in the right place at the right time to benefit from things. What you may once have called good luck and big breaks, will be the result of your thoughts. Helpful synchronicities to get you acting career under way.
You may attract small roles at first, but these aren't to be dismissed. These will be acting credits under your belt, and these will be reflections of the great actress vibration you are building. Mind power works in increments, with small things at first; but as the vibration gets stronger and stronger, so do the circumstances it attracts.
So start today and focus on the fact that you are a great actress, and that will come out of you. It will be like hotwiring your subconscience. When you fully believe this, you will elicit performances and situations you never used to think were possible...but which are now. Part of it you have done already, by feeling so fill of energy and excitement when you act, and that is fantastic. Add a sustained belief in your talents, and you will be irresistable to casting agents.
Best of luck to you.
Something else to remember is that your higher self has given you this desire, and it is connected to the higher wisdom of the Universe. What that means is that it knows what it's doing. The fact that you have been given these talents, and given this desire NOW, is that it IS meant to be, and that NOW is the right time to do it. As you focus, so you shall be guided and so doors shall open for you.