There is no wrong or right answer to how much to bet guys.
Just do whatever feels right for you. If you want to keep it small and low risk, no problem.
If you want to bet big and go for the moon, all good.
Just make sure you maximize your wins and minimize your losses!
Actually, the fewer bets you make the closer you are to reach the expected distribution.
Therefore its best to bet big and infrequently, rather than small and often.
IMO anyway.