You made your sacrifice forbidden fruit.
Lots of people talk about how the best way to break habits is to go cold turkey. You simply cut something out of your life entirely and immediately. You do not do it gradually. You go all in all at once like ripping off a band aid. Sometimes, this is the best way to break a habit. Sometimes, it is the only way to break a habit. Sometimes, it is a terrible mistake.
Going cold turkey can turn something into forbidden fruit. Every Christian with access to the book of Genesis knows exactly how well that usually turns out. Unfortunately, today’s humans do little better when it comes to avoiding forbidden fruit than Adam and Eve did, and today people do not even have the excuse of a talking snake.
If you turn your Lenten sacrifice into forbidden fruit, you are going to overindulge when you are “allowed” to have it again. This can make your consumption or use of whatever the sacrifice was an even bigger problem in the future because it is much harder to resist forbidden fruit than it is to simply pass on something you can have whenever you wish. If you do not trust that you can enjoy your sacrifice again in moderation, you are better off leaving it out of your life entirely.