Is it Worth Me Finishing the Game

So, I saw this is disappearing off PS Plus on 18th August.

As a dad of 2 young kids, I get very limited game time, and wondering if I'm nearing completion.

I've just gave that clown a proper sorting on the pier.

I can realistically do about 10 hours, maybe a little more before it drops off. I'm a slightly slow player. Will I be able to finish the main quest and all side quests? Or should I focus on just main storyline and give up on everything else.

Or just give up altogether? Thanks in advance.