That stuff isn’t cheap! Mixing your own is expensive to start, and takes work. I’m finding it pretty rewarding though. I didn’t spend anywhere near that much a bag.
You will hope it has been cooked, as chicken manure can be pretty hot. The cook time allows the micro life to break down the nutrients for your plants, makes them available to the roots.
If you aren’t gonna veg long then use an appropriate size container. Your plant should love it.
Edit: I also add oyster shell flour, azomite, and basalt rock dust for the micros to my mix. That soil seems somewhat short in that area.