I'd say don't stress too much about being perfect. If you gain a couple pounds, they'll come back off. Your body probably needs that shock to the system now and then.
You did great even with the side effects and slow pace. That jump youve made is excellent, especially managing the transition carefully. Thirty down is nothing to dismiss.
It's a peptide chain that breaks down at the injection site and triggers the system locally. Shouldn't accumulate in your body long term. From what I've read, mild stimulation of that pathway can normalize pretty quick once you stop.