I'm pushing my boundaries.

Meaning

I'm challenging myself to go beyond my comfort zone and limitations.

Examples

• John: 'That's a bold decision.'
• Alice: 'Yes, but <b>I'm pushing my boundaries</b> and believe it will lead to personal growth.'
• John: 'Tough, but <b>I'm pushing my boundaries</b>, both physically and mentally.'
• Alice: 'How's the marathon training going?'