We will save you from reading the explanation of all bet management systems and instead give you a good advice: NEVER use martingales or other Fibonacci sequences to calculate your bets.
There is a simple reason for this: these systems have the principle of increasing the bets with every bet loss. It will be enough to suffer a bad series (several losing bets in a row) to have astronomical bets to place. In short, unless you want to see your budget go up, go ahead.
The best solution is to bet a percentage of your capital. Determine a percentage based on your confidence.
high confidence: bet = 10%.
average confidence: stake = 5%.
low confidence: bet = 1%.