Below is a link for blood magic, it will get you thru the mod but you have it down kind of. Early game I usually put cursed earth above the altar and use mobs to feed blood into the altar rather than my own, they spawn a lot faster than you can regen and they produce 50 more LP per mob. I forget the tier needed believe its 3 but put a well of suffering ritual under or below the altar, I usually put it under so I can hide it but the master ritual stone just needs to be within 10x20x10 area of the altar. I usually box in an area between the ritual and the altar( you can put blocks in between the ritual stones) and use witches to power my network, it costs a lot of Iron but if you use Jailers safari nets and place the witches in this box they wont respawn, they will regen themselves faster than the ritual can kill them so its an automated system, just add more as needed depending how fast you need to produce LP. I usually make 2 of these setups, one for crafting one for keeping my LP network topped off, it all depends what you need blood magic for. If you need help let me know
http://forum.feed-the-beast.com/threads/beginners-guide-to-blood-magic.39927/
http://forum.feed-the-beast.com/threads/beginners-guide-to-blood-magic.39927/