Am I taking over myself financially? 30 years old, family, buying a house – looking for an honest assessment

Hello everyone, I'm currently about to buy a house (or not hehe). I'm 30 years old, married, two children (1 and 3.5 years old). We are about to buy a single-family home and I would like an honest assessment from you as to whether we can afford it financially. I come from a humble background and am currently wavering between “now just jump” and “are you crazy, you idiot?” About us: Me: €5,500 net Person 2: Part-time job €1,000 net (children