Then Paul is a liar according to you, because he said we HAVE BEEN saved by having faith.... it is a done deal.
Not faith alone. Grace enables us to have faith and to follow the teachings of Jesus. Grace is a free gift.
Paul explicitly tells us that we will reap what we sow. Paul explicitly tells us that those who live in sin will not inherit the Kingdom of Heaven.
These are not difficult concepts unless you reject them. Sin can destroy your faith:
1 Tim 1:19
Cling to your faith in Christ, and keep your conscience clear. For some people have deliberately violated their consciences; as a result, their faith has been shipwrecked.
1 Cor 6:9
9Or do you not know that the unrighteous will not inherit the kingdom of God? Do not be deceived; neither fornicators, nor idolaters, nor adulterers, nor effeminate, nor homosexuals,
10nor thieves, nor the covetous, nor drunkards, nor revilers, nor swindlers, will inherit the kingdom of God.
Gaal 5:21
20idolatry, sorcery, enmities, strife, jealousy, outbursts of anger, disputes, dissensions, factions,
21envying, drunkenness, carousing, and things like these, of which I forewarn you, just as I have forewarned you, that those who practice such things will not inherit the kingdom of God.