a player
busybody
The person that habitually exploits is called explorer.
That person would be called a drunk. If s(he) was unable to stop drinking, that person would be called an alcoholic.
That would depend on the habit. Habitually biting your fingernails is likely to have different results from habitually drinking a liter of vodka a day.
delayedslowtardy
A person who habitually complains or grumbles.
A barfly is a person who habitually frequents bars or similar drinking establishments.
An automaniac is a person who has automania, enthusiasm for cars or car racing. It can also refer to a person who habitually hogs the road.
A person who is habitually cruel or overbearing, especially to smaller or weaker people, or thug
i see no point in expostulating with a person who habitually refuses to listen to reason.
A bedwetter is a pejorative term for a person who habitually urinates in his or her own bed while sleeping.
Yes, you can still go to heaven if you habitually sin. If a person believes in God, accepts him into their heart, and really tries to live like him (even with flaws), they can still go to heaven.