I think that many Catholics forget the list of woes stated by Christ. Two points can be made. One, Christ was addressing those who were the leaders of His People; and two, there are consequences for living a life of hypocrisy.
How can a Catholic avoid being a hypocrite? By thinking like a Catholic and being obedient in all things, great and small, to the Catholic Church. I told my seminarian students years ago that the Catholic Church had become too respectable, too middle-class, too accommodating the the culture. Thankfully, God is changing the culture so that we all shall have to make hard choices. We shall be forced to choose Christ or comfort. That simple. Some Catholics ignore the harsh words of Christ and only want the lollipop words.
Matthew 23, DR
13 But woe to you scribes and Pharisees, hypocrites; because you shut the kingdom of heaven against men, for you yourselves do not enter in; and those that are going in, you suffer not to enter.
14 Woe to you scribes and Pharisees, hypocrites: because you devour the houses of widows, praying long prayers. For this you shall receive the greater judgment.
15 Woe to you scribes and Pharisees, hypocrites; because you go round about the sea and the land to make one proselyte; and when he is made, you make him the child of hell twofold more than yourselves.
16 Woe to you blind guides, that say, Whosoever shall swear by the temple, it is nothing; but he that shall swear by the gold of the temple, is a debtor.
17 Ye foolish and blind; for whether is greater, the gold, or the temple that sanctifieth the gold?
18 And whosoever shall swear by the altar, it is nothing; but whosoever shall swear by the gift that is upon it, is a debtor.
19 Ye blind: for whether is greater, the gift, or the altar that sanctifieth the gift?
20 He therefore that sweareth by the altar, sweareth by it, and by all things that are upon it:
21 And whosoever shall swear by temple, sweareth by it, and by him that dwelleth in it:
22 And he that sweareth by heaven, sweareth by the throne of God, and by him that sitteth thereon.
23 Woe to you scribes and Pharisees, hypocrites; because you tithe mint, and anise, and cummin, and have left the weightier things of the law; judgment, and mercy, and faith. These things you ought to have done, and not to leave those undone.
24 Blind guides, who strain out a gnat, and swallow a camel.
25 Woe to you scribes and Pharisees, hypocrites; because you make clean the outside of the cup and of the dish, but within you are full of rapine and uncleanness.
26 Thou blind Pharisee, first make clean the inside of the cup and of the dish, that the outside may become clean.
27 Woe to you scribes and Pharisees, hypocrites; because you are like to whited sepulchres, which outwardly appear to men beautiful, but within are full of dead men's bones, and of all filthiness.
28 So you also outwardly indeed appear to men just; but inwardly you are full of hypocrisy and iniquity.
29 Woe to you scribes and Pharisees, hypocrites; that build the sepulchres of the prophets, and adorn the monuments of the just,
30 And say: If we had been in the days of our Fathers, we would not have been partakers with them in the blood of the prophets.
31 Wherefore you are witnesses against yourselves, that you are the sons of them that killed the prophets.
32 Fill ye up then the measure of your fathers.
33 You serpents, generation of vipers, how will you flee from the judgment of hell?
34 Therefore behold I send to you prophets, and wise men, and scribes: and some of them you will put to death and crucify, and some you will scourge in your synagogues, and persecute from city to city:
35 That upon you may come all the just blood that hath been shed upon the earth, from the blood of Abel the just, even unto the blood of Zacharias the son of Barachias, whom you killed between the temple and the altar.
36 Amen I say to you, all these things shall come upon this generation.
37 Jerusalem, Jerusalem, thou that killest the prophets, and stonest them that are sent unto thee, how often would I have gathered together thy children, as the hen doth gather her chickens under her wings, and thou wouldest not?
38 Behold, you house shall be left to you, desolate.
39 For I say to you, you shall not see me henceforth till you say: Blessed is he that cometh in the name of the Lord.
Read the perfection series and the Doctors of the Church series. All positive steps to avoid hypocrisy.