I lose at least by 1 and 1 quite often, no biggie....
If you can't maintain a solid serve thru practice AND matches, you do not have a solid serve. You've got quirks that need to be worked out, so you can replicate your serve any time, any where.
Post vid, you will see the flaws, which cause inconsistency between days of serving.
IF you had a solid motion, you can replicate it any time, from parking lots to Wimbleton's Center Court, filled or empty.