The budget is without such things

The budget for Ukraine has come partially from our military budget and partially special budgets so far (or foreign aid)

https://www.zdf.de/nachrichten/politik/deutschland/scholz-regierungserklaerung-haushalt-100.html (German)

the Ukraine aid probability gets financed over different positions or special budgets

Was a assumption because thats how it was before, see source.

we don't have enough money for our own stuff

Its very common knowledge in Germany and currently about 2/3 of political news

Here is a article about it.

https://www.tagesschau.de/inland/innenpolitik/haushalt-ampelkoalition-110.html

https://www.zdf.de/nachrichten/politik/deutschland/haushalt-streit-verhandlung-ampel-koalition-100.html

(there is waaaaaay more but that should be enough)

Especially since you have no sources for any of your claims...

Im speaking from a German perspective and all of this is pretty common knowledge here. Its also a major driver for the extreme right and the new pro Russia party (BSW, wich is quite basically a modern version of the SED from GDR)