first, thanks for the kind and warm answers
I’m trying to summarize all the information I’m gathering
I’m quite scared because I don’t have a plan-B in case the pilot career doesn’t work out (and that seems to happen a lot, for what I’m reading)

I have some questions:
How does it work the “instructor ticket”? I need just the CPL license to do it?
How is the job offer? Can I find some work with just the CPL license? Or I will need ratings like the MEP and the IR? I’m willing to work anywhere.
If I have to ask money to my family I want to know how much it will be till I can gain something to (slowly) pay the next expenses and ratings.

I was looking for the prices and I found this link
http://www.flyjaa.com/pilot-license-costs/
It says:

EASA PPL C152 € 9499
CPL MEP PA28 € 8545

Why the CPL is cheaper than the PPL? And How it can be MEP in the single engined PA28?

I’m sorry if I’m bothering you with stupid questions, but I want to understand properly.