You can have the resonable hope of salvation if you do what the Holy Catholic Church proposes for your salvation and stay away from sin. That hope is a Christian virtue and a necessary component of sanctification (Rm 5:5). However you really know when you die and your works are judged (Hb 9:27, Mt 25:31:46, or shorter and more accessible Rm 2:6-10).
There is no quota of good works; you do them as the opportunity is given to you by our gracious Lord (Lk 17:7-10). In fact the temptation to retire from discipleship is itself a sin (Lk 9:62).
“You can have the resonable hope of salvation if you do what the Holy Catholic Church proposes for your salvation and stay away from sin”
No, hope is a grace given by the Holy Spirit, like faith and love, (Rom.15:13), “Now the God of hope fill you with all joy and peace in believing, that ye may abound in hope, through the power of the Holy Ghost.“
“That hope is a Christian virtue and a necessary component of sanctification”
That is true however, only the regenerate (adopted) are being “sanctified”, (1 John 3:2-3), “Beloved, now are we the sons of God, and it doth not yet appear what we shall be: but we know that, when he shall appear, we shall be like him; for we shall see him as he is. And every man that hath this hope in him purifieth himself, even as he is pure”.
“However you really know when you die and your works are judged”
No question works will be judged but not his salvation, (1 Cor. 3:13-15), “Every man’s work shall be made manifest: for the day shall declare it, because it shall be revealed by fire; and the fire shall try every man’s work of what sort it is. If any man’s work abide which he hath built thereupon, he shall receive a reward. If any man’s work shall be burned, he shall suffer loss: but he himself shall be saved; yet so as by fire.”
Paul tells the Romans (8:1-2) “There is therefore now no condemnation to them which are in Christ Jesus, who walk not after the flesh, but after the Spirit. For the law of the Spirit of life in Christ Jesus hath made me free from the law of sin and death.”
At he end of his ministry he sums up his “hope”, his confident expectation this way, (2 Tim. 1:12) “For the which cause I also suffer these things: nevertheless I am not ashamed: for I know whom I have believed, and am persuaded that he is able to keep that which I have committed unto him against that day.” And (2 Tim. 4:7-8) “I have fought a good fight, I have finished my course, I have kept the faith: Henceforth there is laid up for me a crown of righteousness, which the Lord, the righteous judge, shall give me at that day: and not to me only, but unto all them also that love his appearing.”
See, our “ hope “ is not wishful thinking or chance or dependant on an institution; it is a person and in a person (1 Tim. 1:1), “Paul, an apostle of Jesus Christ by the commandment of God our Saviour, and Lord Jesus Christ, which is our hope;” (Heb. 6:18-19), “That by two immutable things, in which it was impossible for God to lie, we might have a strong consolation, who have fled for refuge to lay hold upon the hope set before us: Which hope we have as an anchor of the soul, both sure and stedfast, and which entereth into that within the veil;
The Mt 25:31:46 passage does not apply to believers. Jesus is talking about the judging of the “nations”.