Could this be a scam?

So a friend contacted me 2 months ago and told me about a website called bytesi that deals with quantitative trading.

I know absolutely nothing about crypto. So i just ignored him. He then said that if i make an account he would deposit $100 in my account and i will gain money every day by pressing a button four times. I went with it since it wasn’t my money and apparently he gains more money if he invites people to join.

After about a month i had $200 in the account and withdrew 110 and got the money. After that I had 90 that stayed in my account and it has been going up since. I never deposited anything extra and never will and gave my friend his hundred back. Now with 200 in my account i can simply just withdraw it and get on with my life. I have read a lot about this website and i know its a pyramid scheme.

My friend is already balls deep in the scam and has deposited so much more money.

But if i don’t put in any extra money and already withdrew my initial amount, does that mean I am safe?

The thing on my mind is that the more money you have in the account the higher the commision you get so i was wondering if i keep the money and withdraw it at a later point or take all the money out now in case of a risk of the website shutting down.