Not really, it's better to lose so you can experience how to deal with a character. I love fighting hard opponents because if you win too much, your skills get rusty and when you fight a truly good opponent, you under estimate them and bam you lost. Sure I may get mad that I lost but quitting mid match isn't that great of an idea.
Now for the thing about cloud, he's easy to deal with. Just watch your spacing and use his lag to attack. Once you keep fighting them, they all use the same tricks and you can read them like a Dr. Suess book