Investment advise needed (what do you think)

A friend of mine just met me few hours ago telling me how he has made about $7000 just day trading alt coins within a couple of weeks and is now considering quitting his job and trading full time and to take out a loan of $10000 just to consolidate his gains. What is your humble suggestion as to help me advise him well. Or was his gain just luck and good instinct other than analysis.