My minimum amount that I'm always spending when I'm gambling is just 0.0035 bitcoin. I have never used higher amount than this because I'm afraid that I'm going to lose every bitcoin that I have if I exceeded on my minimum amount if bitcoin that I always used in gambling. I'm not just into gambling, I just do gambling when I feel it, it is just a pastime for me unlike others that are addicted in gambling and putting all their bitcoin at risk just for this gambling thingy.
Do you mean your maximum amount you are willing to put at stake is 0.0035? If that is what you mean then I don't think it is a bad idea. Setting limits and discipline is always the best practice.
Same here it really depends on how much money do i have on my wallet but i dont bet big amounts like as you do since i cant really afford to lose up money even on 0.1 btc per day which is im really scared to risk too much 0.01 is much better and i do bet on this maximum amount since i dont earn too much bitcoin nowadays and i do save for future use.
I think you might want to try poker, in playing poker, there is a higher chance of winning if you have more chips/balance. Just betting smart depending on your card at hand, although sometimes, when you think you are invulnerable, you just don't know what the other player have. Other sharks/whales bully those who have little, and most of the time, they are successful with their strategy.