You're supposed to make money through incremental small bets, not with a few large bets. The former will give you small profit over a given amount of time (but goes up as time increases) but the second will put you at a loss of more money very quickly.
No you are supposed to do it how you want.
When you are wagering on large units like the ones you've shown, your chances of winning it are low. That is how the probabilities work. That's why it's better to e.g. make 4 single 2.0x (possibly each of them parlayed) bets than a single 8x bet. The difference here is having a bunch of 50% bet vs a 12.5% bet. From a gambling point of view here scenarios look exactly equivalent but the extra confidence in sports betting comes from taking advantage of human error which
increases your chances of winning some of the singles by an arbitrary percentage.
For example you can take note that in one of the upcoming matches, one of the teams easily gets red cards, and in another match, another team usually scores less than a certain number of goals, and sports bettors can get better odds from those matches with this information.
Whereas if you put all your eggs in one match, you only get one chance to estimate human error.
Most gamblers play at sportsbooks to make money (of course there is also the fun element). Nobody's stopping you from playing consistently with high odds it's just that you will lose money more often. If you can afford the risk then great! There's no problem.
You do indeed have to adjust the stake. The lower the odds the less volitile your bankroll is, it does not however it does not mean "a loss of money very quickly".
I disagree about adjusting stake. Keeping your stake fixed keeps your units won constant but it also keeps your units lost constant and allows you to survive dozens of lost bets without going bust. And I should clarify that constant stakes is what I meant when I said "small increments".
Again, if you put a larger than usual amount of stake on a bet thinking it's going to win (and a lot of the time it doesn't), that single bet puts you down by a ton of units and it'll take several more bets with lower stakes to bring you back to break-even point.