Eh, conscious existence is whatever you want it to be, happiness can mean A LOT of things, its never gonna be the same for everyone, a meaningful life is to first avoid the extreme suffering if you can, because that ruins whatever meaning you want to pursue, then if you luck out, just pursue whatever makes you wanna stay till the end.

Simple aint it?

Not when people complicate it with some insane goal of a perfect life, lol.

You can struggle, you can suffer, but the journey must be worth your stay, the reason will be personal and up to you.