I specialise in mens waxing and I'm a trainer. I would train you in Mens Intimate waxing once you've done your Beginners with me (or anyone else). You don't have to wait.
Why? Because I find that total beginners 'get it' much quicker than people who have been waxing and find it difficult to break old habits. Also, Intimate Waxing is hot wax which entirely different from strip wax and that's what most therapists are using day in day out anyway.....the the tecnique is totally different.
Also, one could have qualified in basic waxing 10 years ago but never picked up a spatula since, so I really don't see how a set length of time makes any difference.
Although most of my students are fab, I have trained 'experienced' waxers who couldn't wax if their life depended on it.
My training isn't an automatic pass and if I feel that you need more training, you can come back free of charge whenever you feel ready. You won't get your certificate until I think you're good enough though and therefore, you won't be able to get insurance..
I'm training up north soon so PM me if you'd like details.