That's sad to hear. Instead of giving up, you should just practice more tech and get into it. Don't leave something you love behind
I put wayyyy too many hours into melee to get steamrolled by players these days. I'm on point with my techskill, I can wavedash, waveland, shffl, Waveshine, I can combo, I have good DI / Smash DI.... I was a hardcore tournament player back in the ken/isai/pc chris era.
The only people I beat now are scrubs that anybody could 4 stock, there's no satisfaction in that. But the good players? My god. As soon as I get to round 3 winners I'm getting REKT, and I've never made it past losers finals.
There's just way more stuff that people use now that wasn't in play before, shield dropping / options out of shield / Shine grabs / shine out of shield being the ones that I can't do that cause me to suck now.
I used to feel like I was good at melee, and people used to consider me a good player... now all people can say is that I don't know how to shield drop or shine out of shield, or shine-grab so I'll never be good with spacies... and I don't want to bother learning all this new stuff. The hope is dead, I used to watch the top level players in 2007-2008 and say "One day I'll be as good as them!" and now in 2015 players like Ken and PC Chris are considered to be terrible at the game in comparison to many many smashers. I can say beyond a shadow of a doubt that I do not have the talent or ability to compete in todays ssbm meta... the skill gap is too big and I have no way to close it since I have a job, 2 kids to take care of, and no time to waste 5 hours practicing melee skills.
it's all good I don't need to play melee to enjoy it, I watch all the top level tournaments.
For my fighting game fix I have switched over to Mortal Kombat X which the guys who run the smash weekly are also going to host on a different day... I'm hyped!