BDO is a game with very limited trade between players, almost exclusively through the marketplace now. You can't directly trade people.
It's a marathon. The longer you play, the more you'll obtain. More dedication and knowledge will obviously lead to larger gains.
The only things you can really "buy" directly are carries, leeches, or guild payouts, and that will help out with the initial phase more than anything.
Paying someone to list an item is pointless when you don't have enough money to buy the item in the first place.
Gifting is no longer an option after its removal months ago, which means pearl trading is no longer an option.
You are not able to gift kakao cash on steam, so that is not an option either. Even if it were giftable, it would likely be considered an illegal trade here.
If you need pearls and happen to play bdo through steam, you could spend your fg in the CS:GO section on skins, sell skins on the market, buy kakao cash, and use it for pearls.
You can then use the pearls to buy whatever you want. I would recommend pets, weight, inventory space, maids, or even a costume to keep.
Not really worthwhile to buy pearls with the intention of getting things to sell on the marketplace unless you can drop a few hundred a week for gold. Maybe a single costume to sell for 223m for the initial gear boost.