Vetustate Relicta
Inveterata tua iam tandem crimina culpa
Exue, si rediet laeta iuventa tibi.

Here is the vocabulary:
vetustas - old age, antiquity
relinquo - abandon, leave behind
inveteratus - old, hardened by age
tuus - your
iam - already, now
tandem - at last, finally
crimen - sin, guilt, offense
culpa - fault, blame
exuo - shed, strip off
si - if
redeo - return
laetus - happy
iuventa - youth
tu - you