Sports betting is kind of predictable so you need to increase your knowledge about the game you are going to bet to increase your chances of winning but the results May go in other way as well but you can win problem more in sports betting compared to other kind of betting.
This is what must be done if you want to win sports betting. I often place balls, but I am not haphazardly betting. I have to see first from the team, news or players. This will greatly affect the match later.
You have mentioned some of the factors necessary to be profitable in sports betting, but there's more to that which is needed for you to become more stable and more consistent on your judgement. When you are into sports betting, you always look at a long term result, you might struggle from the start but you need to make sure at the end you will end up profit.
While you are betting, you will make mistakes but you will surely learn from it if you are really dedicated on what you are doing.
Proper bankroll management will help you to stay longer but in order for you to take it seriously, you need to build a decent bankroll.