You sound gorgeous!
You are a good age - and sexy. Lots of men will want you.
I think a beginner can get some good experience in brothels or massage parlours, but it isn't good for everyone.
What I would do (what I did do and I'm similar to you):
Don't try to be the same as everyone else and compete.
Set yourself up as an experience worth paying for!
I think if you can work from home, set yourself up as SPECIAL. You want only a few clients a week, not a busy door. Work out what that means for you.
Then, only see guys for a minimum of 1 hour—no quick sessions. Charge £20 more than all the nearest competitors. So, I am guessing you should be charging around £150 per hour.
Then think about it: how many guys do you need to see at home to cover costs?
I am certain you will get at least an average of 5 or 6 per week doing this (which would put you on an average wage).
But perhaps you will get 10.
Write your adverts to target older clients as they are more reliable and more likely to be repeat clients - age 50-60 seems to be the sweet spot - and your age of 36 is perfect for them they aren't looking for young girls.