I think you are looking at this the wrong way.
You didn't fail. Hell no, you raised 40k! So that's a good start.
You underestimated the costs (time and money) of building a global crypto lending platform? Yes.
40k is nothing. What can you do with that.
You need at least 500k to create a solid platform. So aim for 2M.
You burned money creating hype? Yes.
Well, your brand is out there.
Don't stop now. Grow some balls.
Raise more money, build your team, show investors where you're going and why they need to participate! Fight!
Fight damnit! Or do you prefer to work a day time job.
You think you can only ask money once? And when it's gone, that's it?
Look at Tesla, Uber, to name two. They burn money like crazy and don't make any profit (yet).
Still they keep asking more money to investors all the time. See?
Think BIG!
Pro tip: Don't tell people they are investing in a business.
They will receive utility tokens to use on the platform.
Of course, tokens will be convertible to other crypto...
There's a big legal difference there.
Or you could go for option 2: give up and be a little scammer.