The arithmetic first
Search this and most of what comes back is a broker's "open a demo account now". Plenty of noise on the page, and no answer to the question you asked.
Ours is short: one month on demo, then month two goes live with small size.
But there is one thing people get wrong here.
That month is the first of the "at least three months" we keep talking about. It is not added on top.
Not three months on demo and then three more live, six in all. The three months run like this:
| When | What you do | What it is for |
|---|---|---|
| Month 1 | Demo account | Get the whole routine smooth |
| Month 2 | Live account, small size | Start trading real money |
| Month 3 onward | Assess | Scale only once it is consistent |
Going live is a step inside those three months, not something that starts the clock afterwards.