Collecting Money for German Travel-2

In October, I'll go to Germany with my father.

But now, I'm struggling to collect money.

It's last-minute planning, that I collect money after I applied travel tour.

At any rate, I've collected half money of expense.

But I couldn't stop small wasting, such as eating and liquor.

Should I rely on dividend of my equity, or sell gold or bitcoin?

In my case, my cash is always barely.

I also think for the benefit of society, but I want to broaden my vision by going to various place at first.

Going Germany is one method.

I become easily mad if I rely on only passion and guts, so I have to maintain my pace, in the saving money case too.