You made a valiant attempt, but I’m trying to be more specific so that there isn’t miscommunication. Are the sacraments salvific? What happens if they are neglected? Means of grace is a vague term. Trying to drill down here to see what you are referring to.
Neglecting the sacraments is just like neglecting any other means of grace; worship, prayer, fellowship with God's people, etc.
While they are not necessary for salvation in the strictest sense, we must also affirm that regular, willing participation is part of the normal Christian life. They help us to grow in Christ and experience His salvation at the intended level.
They are not the means of our justification, but neither are they optional for our sanctification.
“not forsaking the assembling of ourselves together, as is the manner of some, but exhorting one another, and so much the more as you see the Day approaching.” (Heb. 10:25)
“assembling of ourselves together” includes all the means of grace given to the Church community; worship, prayer, sacraments, fellowship.