First, congratulations on your startup venture! It's always a challenge just to get yourself out there and start.

In your question, you mentioned that you started a marketplace for diving experiences. The first thing that comes to mind:

How many people are actively searching for diving experiences?
How much revenue does each diver generate per experience?
How many of these experiences can you execute in one day multuplied by how many divers?

I asked questions because the number one thing you want to think about when you're starting your business is how much revenue can it actually and potentially generate.

That number of revenue is what's going to motivate people like partners, investors and even your other customers to take part in your venture.

Regarding your questions on what you should do next, I have a couple of suggestions that you may not be pretty....But given your current situation and running out of funding, might be more realistic and you could have a turn around really quickly, albeit at a smaller scale.

Happy to talk more!
Erika