I love roulettes because it is very easy to play and I see it relaxing. I bet with $3.5 yesterday using martingale strategy as I want to see what the outcome would be, I was able to win $6. $6 to $9 but it will go down to $3 until I won $10. From $10 back to $6 until I won $13. Later I won $18. I played 5 consecutive times without winning at all and I lost the whole money. If won any among the 5 times selection, I would have increased it to back $18 or to $25. It was a boring day for me, I enjoyed the game, I wish to play more but I do not want to lose more money.
As the title of your thread says, any strategy fails if overused, but as you can see a bigger problem than choosing a strategy is our greed. If I understood correctly you started with $3.5 and managed to get to $18, that should have been a nice game and that's the moment when you should have stopped the game. But greed is what we all face and often lose because of it, I think something like this has happened many times to each of us, at least to all of us who gamble often. Many times I also made x2 and much more, but I did not know/want/wished to stop and I lost both profit and deposit. It's gambling and when we are excited it's easy for us to get carried away and to believe that we can win even more...
You don't need to have a boring day just because you lost some money... you enjoyed the game and you lost, next time try to stop on time and everything will be fine. It's something we all need to learn, and more importantly to remember to apply that in the heat of the game.