Yes, life without Spark is spark-less and much harder to stay on track.
Congrats on getting back.
Everyone falls. The important thing is picking yourself up.
I've lost and gained and lost and gained 70 pounds in the last 7 years. But THIS time, I'm using SP and it's different.
The important thing is taking care of yourself and making good, lasting choices. Great job on making lasting changes like not drinking soda, more water, no fast food, etc. You know what to do, let Spark People help you stay motivated and on track, using the food and fitness tracker and using the teams and message boards.