Kindness, The Golden Rule, are I guess "sacred" but more importantly, they are the right things to do....if you do not know this deep inside, I doubt any formal religion can help you!

I only have two ideas that I live by.

Always be honest
Never intentionally hurt another person

I think that I am probably quite reflexive socially with other people if that is correct terminology - If someone is ok with me I am ok with them - when they decide to make the first move to do the dirty on me I just ignore them forever, as life is too short, especially as I am already 70 y.o.

I live in a complex of 26 flats for older people and we have friendship groups. I have been attacked in here three times now, so all is not great sailing and the management leaves a lot to be desired - So thank heavens for the community police force. I think live and let live is a good ideal but not always available.

I agree. Life and love are not really values. On this list I would replace one of them with honesty and the other with respect for nature. I would also add diligence, discipline, and lifelong learning.

My sacred value is conscious awareness, and I don’t even understand what it is.

So it seems Dennett means sacred as unchangeable. I would mean it as holy. I suppose it would mean both for a Christian.
I'm an agnostic raised with the Judeo-Christian culture. It was inculcated in me as a Christian who took the Bible seriously. So my values have changed. One thing that has changed for sure is the 'value' of stoning adulterers and homosexuals, although to be fair Christians have moved on from that too in the sense that they leave the judgement to God, who scripture says will not treat them kindly in the end.
Here are what I would suggest are Christian values, called fruits in Galatians 5:
22 But the fruit of the Spirit is love, joy, peace, patience, kindness, goodness, faithfulness, 23 gentleness, self-control.
The obvious thing about these values is that they are very human values too but I won't go into why the apostle Paul thinks they come from God's spirit.
I couldn't tell half the time whether my impulse to follow these values is from my culture or from secular motivation.

Sacred also means to revere or be in awe of. It's one of those highjacked words that has had enhanced meaning by association. Reverence or sense of awe doesn't have an exclusivly religious connotation. The philosophical challenge comes when this interpretation of sacred is placed against its antonym 'profane' which reduces to 'outside the temple'

well i certainly have values but feel no need to try and pimp them out by adding an erroneous extra descriptor like sacred they are either of value or they are not

Pretty much just DBAA.

I believe the word Dennett was struggling for was either axiomatic or inviolate.

Scared as a word does not and cannot have have religious connotations, lexicographically it is a religious word.
Sacred from Latin sacrare literally meaning to designate as religious or holy and therefore coming from the same root as sacramental and sacrosanct and sanctified it actually separates and designates something as religious or as holy and dedicated to a deity rather than secular.
It is therefore completely impossible to an atheist to hold anything sacred, it is like asking how many corners can a circle have.