Guild Wars 2

Hello
I can call myself a casual player, jumping to GW2 than seeing myself getting bored after few months and getting back after another few of playing other games.
The problem is that, whenever i get back to this game I am having fun. But only for a while, than I can see myself starting to care only about gold and better gear or lege and I begin to lose interest in this game.. I really want to have fun with gw2. I’ve been playin’ it since the start, sept 2012 I think.
I love the feeling of being rewarded in games, but in my opinion in gw reward comes only with grind and doing SW or Fractals 40 on daily baisis is not what i am looking for in games. Also i can’t really get involved in guilds because of inflexibility of my free time. I just can’t play at specific hours which some guilds require.
So my question is: Is there anything I can do with it, to have some fun? Maybe MMO’s just are not for me. Is there anyway to get rewarded and get some gold for my gear without “feeling” of grind?
At present I am grinding for my ascended gear because I want to increase my dmg. I’ve got 4×80 chars, ‘ve been playing all the classes. I prefer all light armor one’s.