Going to confession beforehand should be a no brainer but unfortunately it can be quite tough for someone contemplating that final step. But are there any graces to be merited? Can one still offer the mass for a particular intention?
What final step? (Not yet fully Catholic? Afraid of the confessional? Afraid of the priest?)
Are you the person contemplating it?
What intention?
In a state of mortal sin, our souls are spiritually deprived of
sanctifying grace and are in essence dead. There is nothing to be gained except for actual graces for your own soul (the desire to be in a state of grace).
However, if the person is in a state of
perfect contrition, that is to say he/she is sorry for his sins out of genuine love for God and desires to go to confession, the person is already reconciled to God.
The Council of Trent declared, “The Council further teaches that, though contrition may sometimes be made perfect by charity and may
reconcile men to God before the actual reception of this sacrament, still the reconciliation is not to be ascribed to the contrition apart from the desire for the sacrament which it includes.”
newadvent.org/cathen/04337a.htm
So…
If you are in a state of mortal sin, no you cannot pray for a particular intention
but…
if you have made perfect contrition, yes you can.
All of this leads back to the question:
Why can’t this person just go to confession?
If you/this person are not yet fully initiated into the Church and cannot therefore go to confession, I would suggest praying the
Act of Contrition and hoping your intention is heard.
If you/this person are avoiding confession out of fear I would say, Hell is a lot more scary than an old man sitting in a box.