Not going to follow orthodox or catholic church but have question on priesthood

I am not going to follow orthodox or catholic church because it does not meet people where they are as christ taught He does to the samaritan woman that does not give assurance if person effort is enough to see a priest for him to be saved. That also if one converts to orthodox and catholic church and is baptised and has communion in a prison does not give assurance for how often person must seek communion when he may no be able to in a prison

But I do wonder for those who want to be orthodox who can be how does one answer the problem with being assured a person is truly received if perhaps the priest who baptised him is not considered legitimate that does not the church teach there is requirements that should be met before being priest for it to be valid that what if he broke it and they still ordained him or he didn’t believe sincerly. Is there writings in the church fathers that say every priest ordination is valid? Chatgpt says augustine taught heresy or moral failure may make priest merits not valid but may mean just is a bad leader.

Or rather is the requirements made for the ordination of priests now not found in the fathers and if not can we conclude from this every priest ordination is valid.Also how can one know if he was worthy of conversion does not church teach person must fast and meet other requirements if one is catechumen before he is received into the church.

If you do not want to answer me because you don’t think I am worthy Jesus does not support you who says love your enemy and you are saved by grace not by works to be worthy.

And by this all will know you are My disciples if you have love for one another

Thankyou for your reply but they are not available in all prisons in all the world so can not meet one where one is at by which I mean a person needs not to make any effort to be worthy to have God be available to one now to save him which I think really fulfills saved by grace not of works lest any boast.

I was just asking if a priest needs to meet criteria which I read they make is required in catholic church and which I may have read is practiced in orthodox church too and if you know this is from the fathers and where in church father writings.

And I know baby does not need to prepare to be baptised but church fathers such as st basil said adults must fast before baptism and perhaps they also taught to teach to be instructed in piety and accepted when they have followed it for I know catholic church teaches such before being baptised