well let me give you my experience , I got to know bitcoin about 18 months ago and I have never put money to get coins
I started to search for every possible method to get coins , and gambling was the best for me
I started to chase poker freerolls and dice faucets till I built 0.2 btc , then I started to roll that amount in poker
so yes it's possible to make a lot starting from nothing , as long as you have goals
sadly you will not make a good amount by only playing dice , cause it's -EV but you can build a small roll from faucet and then withdraw it and try to put your money in good like poker or trading
I do the same thing as yours frankly. I never put my own money on any gambling sites and I already did it for about 2 years. I keep hunting free coins at almost every gambling sites and in this place for sure. It was very fun when my favourite dice site (primedice) had a feature like faucet increased after 1 BTC wagered. They gave me 1300 sat for 1 BTC wagered account and I played with that faucet almost everytime when I got spare time on the internet. I was hunting 9900x payout for longer time and everytime I hit it I withdrew it to my wallet. I was able to collect some coins by doing that method but unfortunately nowadays primedice has already increased the minimum wagered amount before the faucet to start increased from 1 BTC to 10 BTC due to the faucet abusers.
In my opinion it is very possible to get something just from faucet! Keep try and good luck!