I've tried to free myself from that sense of being unwanted
Or: I tried to get rid of that feeling of being unwanted
And I've failed a thousand times but I've tried
I've put weights on my back and then I fell
I've lost blood from my nose and I got up
Or: I've had a nosebleed and (then) I got up (again)
But at twenty years I already wonder if I'm too tired
Or: But at twenty years (old) already I ask myself if I'm too tired
If what I need is what I've desired
If one day I'll really succeed to be accomplished