Hello! There is no answer to your question! First tell me how many years you play poker? If you ask these questions, then your experience of the game is very small! Quickly, only money is lost, and earned with experience!
Be careful trying to play headup as when they see a fresh name sit a headup table, all the bum hunters will be scrambling to get on the table with you. I think zoom or sng are your best bet.
If you play poker in order to make a lot of money quickly, you will lose everything. Well, in general, the fastest is perhaps spin & go, but this is the hardest part. The simplest game cache. There you can play tight, which is safer
Depends on the stakes you play. You could play hyper turbo sit and goes and make money fast but you could also lose it fast. A 6 man hyper turbo takes about 15 minutes and first gets almost 4x the buy in and 2nd gets almost 2x
To make money fast you must first learn how to not losing money quickly
Everyone wants to make money very quickly. But not everyone do this.
I think if you have enough experience you can in any mode make lots of money
Cash games can be a fast way to make money if you have a big bankroll but I personally find 6max hypers to be the fastest. They usually take around ~15min to finish so running 4-8 of them at a time can definitely make you a lot of money (or even lose a lot) quite fast! Careful for swings though as 6max hyper isn't really the safest gamemode out there