Telling someone to stake is not really helping him, at first i wouldn't say qolderman is a pro pvper, (i have never seen him pvp so he might have talent) but so far i know he wont be able to beat everybody in stake.
Looking at the players staking they most of the time have decent skills and know how to stake in flop for 1v1's, however most stakes are placed on holodeck. Holodeck is not just about skill, if luck is on your side you can make easy tons of gigas by playing it. But i do not suggest this because imo it's all gamble which means you can lose all in a single game.
How i started making money was by merching items. Back then i used to buy halloween shields and shoulder for 15m and sell them for 20m. it took me a week to get 200m like this. Today Halloween items sell worse because of the last halloween event, most users that need it already have one. So i would suggest grinding sector on lvl 172, the drops earn you enough gigas to get around 10m-20m and a bunch of exp. with the money you earn you can merch in transcoupons which are increasing in price because of they are now only available using zyloncoins. you can buy a transcoupon for 9m-12m and sell it for 12m-14m depending on how hard you try.
Also opening a shop on the forums to sell all your stuff you don't need (bladium 5+, Bladess 4+/5+ parts) can earn you a little ammout of gigas which can stack up to high ammouts if you try hard enough.
This is my advice