geddeg, that's a million dollar question, isn't it?
Honestly I think modern society is do FUBAR that parenting is a monumental task no matter what and especially for pagans. Without converting to the true faith and cultivating a Catholic marriage I don't know what can be done for seculars.
For Catholics we have the grace of state and graces from frequent reception of sacraments. In that vein I think relocating (if possible) to an area where you have regular access to the sacraments can make things easier a bit. Before that being discerning and choosing a good spouse will help. Mixed marriage to a non Catholic should be a non-starter but I see way too many trads enter into such disasters.