I ain't so optimistic as that. I don't have any real reason to believe that I can actually get any good, particularly since I've never been any good at anything, and it's not like I haven't been trying. I very much believe that there are just some things we are not capable of no matter what. There is no guarantee that just by simply not giving up that things will improve; that's just bull**** that only works in shonen manga/anime. Reality ain't full of rainbows and sunshine. The reality could very well be this is my limit and I lack the abilities needed to succeed and there's nothing I can do about it.
It's preferable to be realistic about things. I'm glad you're trying to be as much, but the issue is that your wrong in this. No skill is acquired through genes; talent only makes things easier, and the lack of talent doesn't make things impossible. If you give up, no one's going to judge you. But you should bare this in mind before you do: even if it seems like you can't achieve your goal, the only real reason you didn't is because you gave up. Period. If you keep going for it, there's only one direction you can go, however so slowly, and that's forward. We as human beings do have limits. That is important to acknowledge. But if we can do it, so can you. Some may have it easier than others, but we all have the same limits. Don't just sit there and let everyone get ahead of you. Strive to get better in everything, no matter how hopeless it may seem or even be.
Take a good look at me and know this: I wasn't this good at the start, and I still wasn't for a very long time. I remember when I played Melee for the first time back in the day. All my friends laughed at me for lacking the ability to take so much as a single stock off of a CPU, regardless of the level. I would get bodied not just by level nines, but eights, sevens, sixes and all the way down to four. I couldn't beat anything higher than a level three CPU, much less stand a chance against any of my friends. But instead of giving up after so much practice, (it was at least eight years before I could take on a level seven,) I let their taunting fuel my desire to climb the ladder and become stronger. I never did kick ass in Melee, and I still don't, and although I do far better now, one can't deny that Melee is too fast paced for most people to enjoy playing competitively. I'll be honest on this one. While I do think Melee had an edge over Brawl in terms of competitiveness, I think that Sm4sh is just as superior to Melee as the latter was to Brawl.
Several years later, during the Brawl era, when I could hold my own against a freakin' CPU, I met my first real competitive Smash player, my brother-in-law, the biggest troll/asshole on the planet, as well as a close friend and someone who's taunting and massive skill level encouraged me even further. Even as Meta Knight, the unquestioned best character in Brawl, as well as my main back then, (and still now) he could three stock me as any character in the game. Because of him, I've pushed even deeper then I ever thought I would, and I'm the better for it.
As you can see, I've come a long way. One
hell of a long way. And even now, I've still got one
hell of a long way to go. I haven't even beaten my broski-by-marriage yet, now that he's divorced, although I'm sure I could. (it's been at least a year since our last Smash match) I've yet to test my skills against Raziek, which is a large part of why I got on Smashboards. I want to get more confidence before I do. Hell, I still get bodied by casuals in FG on occasion. But I haven't given up, even when my skill level has seemingly come to a stalemate.
I know for fact that if I ever gave into that sense of hopelessness that plagues us all on the road to victory, I sure as hell wouldn't be where I am today. I can understand why you would want to stop; I love Smash, but I can't deny there's far better things to do in life. You should at least be aware that if you give up now, come to regret that, and decide to pick it back up later, you may have to start the long long climb all over again. Although I advise against it, if that's your decision, then I will respect it. But hear this first: don't do anything you'll come to regret.