Instead of focusing on perfecting your yoga postures or touching your toes, turn your focus to how you feel and the quality of your breath. If you feel pain or the pose feels threatening back off a little and tune into your breath.
Enjoy your practice regardless of your ability. There tends to be too much emphasis on the physical/external aspects of the practice. These abilities pass & change thru the years, the “real” yoga is what we cannot see.
It is the commitment & practice of yoga, not the attainment of a posture that measures your personal success.