/diy/ - Do It Yourself

Here goes.
I've been without a steady job for the last three years.

Trough the EU Employment Agency I found a job in Germany.

I will be a boat mechanic looking after a fleet of 30 diesel engined boats. It starts in two months.
Wage is €4,000 NET per month and accommodation is provided so not bad at all.

Thing is, I have no experience or qualifications.
(I exaggerated a bit on my CV)
I know very little about boats or engines and I don't speak German either.

Should I try and wing it or just quit now?