invisible and old and no kiss up am I

I can relate the many details of how I felt invisible during my young years, esp. with interactions with adults, but was nothing like that feeling I experience too often as I age.
I notice at work, though I may be in better shape and prettier, ore energetic and more knowledgeable about educating hospitalized youth than woman twenty or more years my junior, the younger ones are invited to participate in special projects, not me, though I may be much more innovative than they.
I also know that they get greeted by their younger cohorts, no matter what the dept. than I. There is an exception. Ms. "D" is a few years older and any pounds heavier than I, but she wears expensive clothes, gaudy gold jewelry and her finger and toe nails and hair are always perfect, he always smiles and agrees with what her supervisors say, so she is a favorite- not much up on education, but what a kiss up.