I would suggest… a little of both, actually.
Last Lent… I heard someone on EWTN say, that giving up something we like… <i.e., sweets, junkfood, smoking… etc.> is fine; but a more mature approach to Lent… is to try to get one or more major faults, under control.
That’s more my focus, THIS Lent. Hope this helps in some way.
God bless.