One dropped ball gets forgiven. Dropping them all year becomes your reputation.

People are generous about individual failures and unsentimental about patterns. A single miss gets absorbed into the general noise of a busy life, and everyone has one. What sticks is repetition, because that is how anyone forms a picture of what to expect from you, and the picture takes much longer to change than it did to form.

If you have dropped a few recently, do not apologise harder, just narrow what you take on. Fewer commitments kept precisely will reset the picture faster than a good explanation ever does.