I’d tell him to accept the job offer of running an own buisness the first time it popped up, and to go into balg reseurching alchemy, Sumerian and the hidden God P’tah. I’d make myself learn Numinosis just a little earlier, and force my self to use it a little more agressivly.
Since i’d tell my younger self the risks invloved are controled and taken care of by combining the elder Magick of the Sorcerer that went back with the learning one.
Oh wait, something similar is actually in the working. 
xD
I’d basically just skip some of the Stuff that happened and quicken my ascend. xD
Sincerely,
¥’B