On the contrary, I think you are a bad sports bettor because you just mentioned one of the reasons you have been on losing streak which is also part of the reasons that gamblers lose. To chase your loses have been mentioned at different times here to be a bad gambling. If you lose at a point you are advised to let go and try next time for better luck but a gambler who keeps chasing loses is most likely to keep do more egregious mistake that would eventually see him exhausting funds to the level of regrets like you are doing.

However, I wish you luck if you decide to come back gambling but take correction and have grasp of your emotion and if you ain't coming back to gambling, better luck too.