Describe the idea in plain words
Write something like "buy when the price crosses above its 50-day average". You get rules you can read and edit, with no code.

See the whole result, not just the best number
The equity curve, the worst drop, the win rate and the costs are shown together, so a lucky month cannot hide a bad year.

Check it before you trust it
Walk-forward and Monte Carlo runs show whether the idea holds up on data it was not tuned on. Results are history, not a promise.

Practise with paper money
Try the idea with paper trading and keep a journal of what you did and why, before any real money is involved.
