I have black thumbs and this is my only indoor plant. We've had it for several years and I need help to keep it alive. Until recently it was in the original plastic pot it came in and 2 of the 5 braided stalks had dried out. So, I thought it may need replanting so I put it in a larger pot. However, the new pot doesn't have a hole at the bottom for the water to escape, so I put some rocks in the bottom and planted it with some potting soil. Now it is infected by small flying bugs that look like gnats and only one of the stalks is still alive.

How do I save it?

In this economy, the last thing I need is for my Money Plant to bite the dust! Any help would be appreciated.
Thanks!