Lent is traditionally and routinely considered a period that requires observers to abstain from something they normally enjoy, or behaviors that are not considered reflections of a mature faith. This is characterized as a period of self-denial, of stopping the doing of something for a period of time.
There are two observations we might make this year. The first is that Lent need not involve giving something up that is not conducive to the Christian walk. What if instead of giving something up for 40 days, we began or took something up for those 40 days? Is there something in your walk that is missing, that you have not been consistent in doing? Are there practices you have thought about beginning? Maybe a more consistent quiet time, or an intentional ministering to the homeless or poor? Maybe it's journaling prayers, or maybe something that needs you to be more consistent at home, work, or school. Lent need not be a subtraction, but a growing into something positive, more disciplined, more other-focused.
The second observation is that we shouldn't treat Lent as only a limited period of time of denial or practice. Rather than giving up chocolate for seven weeks, intend to establish a habit of healthier eating that will last beyond Lent. If, rather than subtracting, you elect to add or develop a new practice or behavior, similarly do so with the intent of continuing the practice after Lent, rather than simply as an experiment.
The purpose of Lent can include reflection, waiting, remembering, or in some other way growing closer to God. If this is true, then it may be appropriate to add or begin something rather than ending something. Once begun or ended, whatever we choose for Lent, use the extended period of Lent to establish a basis to launch a truly changed perspective that would live well beyond Lent.