Hi, I've got sub 3 official avg so i think i can help you a bit.
One looking pyraminx with v-first method is not hard to learn (although it takes a while to do it consistently). The method is just about tracking last 4 edges (i suggest you start by tracking the D edge as it's really useful to know that even if you don't finish tracking all the rest).
Once you get the hang of it with unlimited time i suggest you try pyrabld(no tips) so you get faster at tracking pieces.
I hope this was helpful, if you need further explanation tell me and I'll try to answer.
P.s don't start one looking until sub 4 global average