I haven't played a sorlock myself but from people explaining it, it seems the reason you go 2 warlock most of the time is to get a buffed version of EB with Agonizing Blast which makes for a great cantrip when you're out of spell slots. Then as everyone else mentioned, use your sorcery points on
sorcerer spells, since they generally have a wider pool of spells to choose from vs
warlocks.
