Here are a few tips to overcome fear in Intraday trading.

1. First decide how much you can afford to lose in a single day
2. Take the position accordingly
3. Keep the stoploss immediately after taking position
4. So the max. loss must be according to your 1st step
5. Relax yourself throughout the day and book the profit with 1:1 or 1:2 ratio
6. This gives you a peaceful day

Do not take risk more than what you can afford to lose. Sometimes protecting capital is more important than earning.