Claude desktop for larger projects a no go?

Ive been working on a tool that provides market data and information as well as world news etc to serve as a dashboard for my personal use as a trader. It all started fine in week 1 but when my chat hit the limit and I had to start a new one the shit started to hit the fan. Claude loses all context from the previous chat and cant really make sense of things. It feels like all the work I did over the past week is useless as I cant get claude to take it into account.

Anyone else havthing this issue? How do I get it to understand the complexities of something it has already already built? I cant possibly summarize a weeks worth of context.