>>50689332don't open packs, just buy the cards you want as singles. it's cheaper in the not-so-long run and opening packs will just turn you into a dopamine fiend
a good place to start is picking a pokemon and searching it on pokellector, find a card you like, maybe check out the rest of the set it's from to find other cool stuff and go from there. there's a lot out there and it's easy to get overwhelmed, so it helps to narrow your interests to one at a time