vivo aeternus vel morior adtentatio

I have an idea of what it means
But I would really like to make sure,

I thought it meant
" to live eternally or to die attempting"
But I'm not sure,
Please help??

Well your almost correct! "vivo aeternus vel morior adtentatio"

vivo vixi victum : to live, be alive.
aeternus etervel : or, (adv.) even, actually, for example.
vel : vel.. . Vel either.. . Or.
morior : to die, wither away, decay.
And adtentatio really has no meaning! Hope it helped??