Fake it till you make it
Act confidently even if you don’t feel it, to eventually gain true confidence.

Put your best foot forward
Make a great effort to present yourself well.

Stand tall
Be proud and confident in who you are.

Have a chip on your shoulder
Be defensive or self-conscious about something.

Wear your heart on your sleeve
Show your feelings openly and honestly.

Get back on the horse
To try again after a setback or failure.

Know your worth
Understand and value your own abilities and qualities.

Step out of your comfort zone
Take risks and try new things.

Strike while the iron is hot
Take advantage of favorable conditions.

Believe in yourself
Have confidence in your own abilities.

The sky's the limit
There are no limits to what you can achieve.

Hold your head high
Be proud and confident despite difficulties.

Keep your chin up
Stay positive and confident in tough situations.

Go out on a limb
Take a risk or put yourself in a vulnerable position.

Shoot for the stars
Aim for high goals and ambitions.

Keep the faith
Maintain confidence and trust in a situation.

Rise to the occasion
Meet a challenge with confidence and determination.

Light a fire under someone
Motivate someone to take action with confidence.

The ball is in your court
It’s your turn to take action or make a decision.

Stand your ground
Maintain your position or opinion confidently.