Break free
To escape from control or confinement.

Free as a bird
Completely free and unrestricted.

Free rein
The freedom to act as one wishes.

Let loose
To release or allow something to move freely.

Give someone the green light
To give permission to proceed.

Cut the shackles
To remove constraints or limitations.

Take the handcuffs off
To remove restrictions or limitations.

Stand on your own two feet
To be independent and self-sufficient.

Throw off the yoke
To get rid of oppressive control.

Break the chains
To free oneself from bondage or oppression.

Come out of one's shell
To become more open and free in social situations.

A breath of fresh air
A welcome change; something refreshing.

Go with the flow
To adapt to circumstances and let things happen.

Seize the day
To take advantage of present opportunities.

Set someone free
To liberate someone from a situation.

Live and let live
To accept others as they are and not interfere.

Go against the grain
To act contrary to what is expected or accepted.

Have a mind of one's own
To think and decide independently.

At liberty
Free to act as one chooses.

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