Handbag, that's so lovely!
Yes, sometimes The wheel has to be reinvented. Our christmas traditions are very different from any memories of my childhood.
We have our big xmas dinner on christmas eve, turkey, roast potatoes and veg, then choc dessert.
Real tree with real candles, being put up on xmas eve or the day before and decorated by all of us together.
I cook the dinner (with 1-2 glasses of bubbly), then we go to the neighbours (whole street invited) for a quick xmassy drink, get back and eat.
After the dinner we move to the living room where (Christkind) someone has brought presents, we unwrap them taking turns.
Then we play games, some old, some may be new. Ds plays the piano and dd the violin, they normally practice a bit beforehand to play a duet, sometimes it's more of a jam session (when drumming dh joins in and I join ds on the piano).
We always have a xmas party around 10-15th of December where all friends and neighbours come for a drink, cakes and chat, very relaxed.
The most important tradition of all: no stress. Had relaxed xmas for 15 years now.
OP, you will find your own traditions, they will develop as your son grows up.