Starting a new life

I am learning how to use Stessa and while importing data from AppFolio I made several mistakes. After multiple time consuming attempts to fix them I realized that it would be much easier to start all over again. So my question is: will deleting all portfolios and data sources guarantee that all traces of my previous actions (including deleted transactions) will be safely removed from Stessa’s database and I will be able to start from scratch without leaving any trash behind me?