I made €4,500 investing €100 in a week and a half, and I feel bad about it

I’m from Spain, lower-middle class, and I make around €1,900 a month from my regular job. A couple of weeks ago I decided to put €100 into gas and crypto.
I’ve tried investing a few times before, nothing serious. Small amounts, short periods. My dad was a gambling addict, so I’m very aware of that risk and I really don’t want to go down that road. Still, for some reason I’m decent at reading the market, waiting, not panicking. At least so far.
In the past, the most I ever made was maybe €400 or €500. This time was different. With the market the way it is and some lucky decisions, I ended up turning that €100 into about €4,500 in a week and a half.
I’m grateful, obviously. That money actually matters in my life and gives me some breathing room. But I also feel weird about it. Almost guilty.
It makes my normal work feel pointless. I work my hours, I do side jobs, I try to improve my situation slowly… and then this happens, and it feels completely disconnected from effort or value.
The market feels real and fake at the same time. Aggressive, almost brutal. Like you’re winning only because someone else is losing. I don’t know. I didn’t expect the money to bother me this much, but it does