It's still doable...

yes, it is!
Only when you die, you can rest, until then, live.
Do what you want, fight for what you believe, and enjoy every moment as if was the last of your life. It seems to be a made up speech, but now is what i believe in.
I didn't thought like that, i just wasn't living, i was not fighting for anything, i didn't enjoy what i had, i did't questioned what was around me, i had many things that i didn't care about it.
The turning point was when i lost the most precious thing to me, love. Love it's too much important for me, it gives me security and confidence, three things i took it for granted and now that i don't have them, i am fighting to get them again.
So, if you think your life has no meaning, and you don't feel happy in what you do, wake up, try to innovate and get something to fight for, even if it's hard to get, don't give up, because, while your alive, it's still doable.