Do you know lepra? (Hansen's disease)?
There is 3 steps when you get lepra:
1. You will have uncomfortable in your body
2. You will have pain in all of your body
3. You will not have pain

Same with us, when we have a small sin, we feel uncomfortable for the first time, but sometimes we didn't "regret" the sin. We ignore the sin until we make a BIG BIG sin. After that, we still ignoring the sin, until we didn't realize that we already make a sin because too often doing that sin.

So, do you wanna let the sin? and didn't heal that? until what time?
Realized now and get a new born.
Repent and forswear.