u/Double_Binks

Hey guys! I am not sure this is the place to ask this question but what would you do in my place ?

I am 25 and I live with my parents. I have 2400€ of net income. Just got my job as car prep/painter so only starting to set money aside. I have 3k aside on the bank and 1k cash aside. I make around 150-300€ extra per month working for a friends dad in construction.
I want to invest and build bank for my future but have no idea how to do it
My monthly expenses are 170€ for car loan, 130€ car insurance, 250€ pension, approximativly 150€ of diesel and 200€ house rent. I probably have some more expenses but nothing I can really think of right now.

Thanks for your answers