Base on your previous experience you lost it all in trading, and you still want to continue? you even have the courage to take a loan even though you don't have a source of income? are you digging your own grave here?
How about your expenses how would you cover it if you would only relay on your trading skills?
You're friend isn't wrong to suggest on finding a source of income first before jumping back into trading.
That is the questionable part, I mean if you do not make profit from trading, then you do not trade, not for an income at least. You could always trade when you have an income, because you can put some of it aside, and test with small amounts and learn to be better, study trading and hope to get better, that is totally understandable.
But when you have no income, and you are getting bad results, how are you going to get any money out of it? You could literally lose all you have, and in that case you won't be making any money at all, it just doesn't feel ok to me at all. I am pretty sure that we are going to be seeing this as a deal that won't be all that easy to handle, we should be looking into this as a way to get better without a doubt and should be considering how this could mean something more.