Keeping in mind that I didn't play myself so I'm far from a specialist: the more you progress in the game, the more challenges it will throw at you on top of managing the Abnos, so while you of course can't avoid dealing with the Abnos I'd personally try to avoid those that force me to pay even more attention than average, like the Train, the Button, or Happy Teddy Bear, though which Abnos count for you depends on your comfort with them. On the other hand your current facility doesn't have the most... explosive combinations I can think of, which is nice. If you do restart, avoiding Abnos that create chain reactions when they're all in the facility would be preferable.
I don't have a firm opinion on restarting or going on. Hoping that someone else will come in to help!