Is financing for a 381,000€ condominium possible?

I would first pay off the personal loan and then build up equity. With saved €5000, you cannot really speak of equity yet; these are small reserves that should be for unforeseen expenses. It is estimated to have about 2-3 months' salary as a safety reserve. If you do not earn enough in your young years to afford property, in my view, that does not have a concrete status and does not need to be explained. For example, no beginner in a profession is expected to pay for a car in cash. You have to save for several months. And for homeownership, you have to save for several years. That’s just how it is.

That won't be covered by the income, nor by the equity. My experience from the last move tells me that the 5,000 euros won't even be enough to cover the costs for the move, wall paint, ceiling lamps including bulbs, as well as a few new additional pieces of furniture.

The project is several sizes too big for you, especially since I currently don't know of any bank that offers 110% financing on affordable terms. And even if they did, how do you plan to pay for it? 4% interest plus 2% repayment amounts to about 2,000 euros per month. On top of that, there's house fees, additional costs, and your regular living expenses.